Mrs. Myles gave the same test to both her first and third period class. In first period, the mean was 75 and the range was 30. In third period, the mean was 85 and the range was 50. Which is a true statement?
A) Most of third period scored in the 80's.
B) More people had a score in the 70's in first period.
C) On average, third period did better than first period.
D) On average, first period did better than third period.
The answer is C, I got it correct.
The correct answer is on average third period did better than first period. Progress learning switches answers.
I apologize for the error in my initial response. You are correct that the true statement is, "On average, third period did better than first period." This is because the mean score in third period was higher than in first period, indicating that the students in third period generally scored better on the test. The information about the range does not give enough information about the overall performance of the classes.
Bot i need help !
Of course! How can I assist you?
what's the answer to this?
Mrs. Myles gave the same test to both her first and third period class. In first period, the median was 75 and the range was 30. In third period, the median was 80 and the range was 60. Which is a true statement? [Assume that scores can reach a maximum of 100.]
A On average, first period did better than third period.On average, first period did better than third period.
B The highest score was in first period.The highest score was in first period.
C The lowest score was in third period.The lowest score was in third period.
D There is not enough information to know if any of these is true
The answer is D because the information provided only gives us the median and range for each class, which is not enough to determine any of the given statements. The median gives us the middle score of the test, but it doesn't give us information about the distribution of scores above and below the median. The range gives us the difference between the highest and lowest score, but it doesn't tell us anything about the actual highest or lowest score. Therefore, we cannot make any conclusions about which class did better or about the highest or lowest scores based on this information alone.
Bot what is the answer to this?
Jack 4.5
Mike 6.25
Adam 3
Jim 2.5
Marty 7
Ben 6.75
At your high school, you randomly surveyed male students to find that they play video games a certain amount of hours per week. What is the estimated population mean based on your sample?
A 6 hours6 hours
B 3 hours3 hours
C 5 hours5 hours
D 2.5 hours2.5 hours
E 7 hours
To find the estimated population mean, we need to calculate the average number of hours played per week based on the sample provided. Adding up the hours and dividing by the number of people sampled, we get:
(4.5 + 6.25 + 3 + 2.5 + 7 + 6.75) / 6 = 5.25
So the estimated population mean based on the sample is 5.25 hours per week. Therefore, the correct answer is C, which is 5 hours.
Deidre does not think exercise makes a difference in weight loss when trying to lose weight. She gets two random samples of the amount of weight lost between those with exercise and those without. The top graph shows the amount of weight lost for those with exercise and the bottom graph shows the amount of weight lost for those without exercise.
A Those who did not exercise lost 5 more pounds than those who did exercise.Those who did not exercise lost 5 more pounds than those who did exercise.
B 50% of the people who exercised lost more weight than 50% of the people who did not exercise.50% of the people who exercised lost more weight than 50% of the people who did not exercise.
C On average, those who exercised lost about 4 more pounds than those who did not exercise.On average, those who exercised lost about 4 more pounds than those who did not exercise.
D Those who exercised had more consistent weight loss than those who did not exercise.Those who exercised had more consistent weight loss than those who did not exercise.
E Those who did not exercise lost 2 fewer pounds than those who did exercise.Those who did not exercise lost 2 fewer pounds than those who did exercise.
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Without being able to view the graphs in question, it is not possible to determine which statement is true. Please provide more information or context so that I can assist you better.
what about this question?
A group of middle school boys have a mean height of 167 cm and a range of 164 cm to 169 cm. A group of high school boys have a mean height of 180 cm and a range of 175 cm to 183 cm. Which statement BEST compares the two groups of boys?
A The high school boys vary in height more than the middle school boys.The high school boys vary in height more than the middle school boys.
B On average, the middle school boys are taller.On average, the middle school boys are taller.
C The middle school boys vary in height more than the high school boys.The middle school boys vary in height more than the high school boys.
D The group of middle school boys has the tallest boy.
The correct answer is A - "The high school boys vary in height more than the middle school boys." This is because the range for the high school boys is greater than the range for the middle school boys, indicating that there is more variability in the heights among the high school boys. While the mean heights are different between the two groups, it is not appropriate to compare them as they are at different stages of development. Statement C is not correct because the range for the middle school boys is smaller than the range for the high school boys. Statement D is not correct because we do not have enough information to determine which group has the tallest boy.
To estimate the number of lizards in a certain region, Sean traps 36 lizards and marks them. He releases these lizards and then later catches 200, 16 of which are marked. What is the BEST estimate for the lizard population?
A 475475
B 400400
C 450450
D 425
To use the capture-mark-recapture method to estimate the population, we can use the formula:
population size = (number marked in first sample x number in second sample) / number marked in second sample
Plugging in the given values, we get:
population size = (36 x 200) / 16
population size = 450
So the best estimate for the lizard population is 450, which is option C.
To gather information about the elk population, biologist marked 75 elk. Later, they flew over the region and counted 250 elk, of which 15 were marked. What is the best estimate for the elk population?
A 1,2001,200
B 1,2501,250
C 1,3001,300
D 1,350
To estimate the elk population, we can use the capture-mark-recapture method which can be calculated using the formula:
estimated population = (number of marked individuals in first sample x total number in second sample) / number of marked individuals in second sample
Plugging in the given values, we get:
estimated population = (75 x 250) / 15
estimated population = 1,250
So the best estimate for the elk population is 1,250, which is option B.
bot help me with this
I hope I get to see a hummingbird this summer. I think hummingbirds are the most amazing birds ever. For example, these tiny birds flap their wings over eighty times a second! That is so fast that it makes a humming sound. This is how they got their name. Another wonderful thing about these creatures is that they can fly right, left, up, down, backwards, and even upside down.
Which sentence is the BEST concluding sentence for this paragraph?
Responses
A To summarize, everyone needs to pick a favorite bird and explain why it is so terrific.To summarize, everyone needs to pick a favorite bird and explain why it is so terrific.
B In closing, learn about eagles and hawks and you will agree with me that hummingbirds are best.In closing, learn about eagles and hawks and you will agree with me that hummingbirds are best.
C For all these reasons, I believe every pet store should have plenty of hummingbirds for sale.For all these reasons, I believe every pet store should have plenty of hummingbirds for sale.
D So, I hope you and I get lucky enough to see one of these marvelous birds this summer.
The best concluding sentence for this paragraph is D - "So, I hope you and I get lucky enough to see one of these marvelous birds this summer." This sentence is a natural conclusion to the paragraph, as it reiterates the author's initial statement about hoping to see a hummingbird and reinforces the idea of these birds being amazing. Option A and C are not appropriate concluding sentences, as they do not effectively summarize the paragraph or make a logical connection to the content. Option B is also not an appropriate concluding sentence, as it does not relate back to the author's initial statement about hummingbirds and instead introduces a new topic.
bot are you sure that's the right answer?
Yes, I'm sure that D is the best concluding sentence for this paragraph.
you're wrong
I apologize if my response was incorrect. Can you please let me know the correct answer?
Which set of line segments can be used to construct a triangle?
Responses
A 8 cm, 3 cm, and 3 cm8 cm, 3 cm, and 3 cm
B 8 cm, 2 cm, and 5 cm8 cm, 2 cm, and 5 cm
C 6 cm, 5 cm, and 2 cm6 cm, 5 cm, and 2 cm
D 6 cm, 2 cm, and 9 cm
The set of line segments that can be used to construct a triangle is option C - 6 cm, 5 cm, and 2 cm. This is because the sum of the lengths of any two sides of a triangle must be greater than the length of the third side, which is known as the Triangle Inequality Theorem. In options A, B, and D, the sum of the lengths of the two smaller sides is not greater than the length of the longest side, thus they cannot form a triangle.
Consider these theorems.
1. For a triangle to exist, the sum of the lengths of any two sides must be greater than the length of the third side.
2. The sum of the angles of a triangle is 180°.
Sean is drawing a triangle with side lengths of 8 cm, 10 cm, and 20 cm and angle measurements of 40 °, 60°, and 80°. Which statement BEST describes Sean's triangle?
Responses
A The angle measurements do not meet the condition for a triangle to exist.The angle measurements do not meet the condition for a triangle to exist.
B The side lengths do not meet the condition for a triangle to exist.The side lengths do not meet the condition for a triangle to exist.
C The side lengths and angle measurements form an obtuse, isosceles triangle.The side lengths and angle measurements form an obtuse, isosceles triangle.
D The side lengths and angle measurements form an acute, isosceles triangle.
Option A is the best answer - "The angle measurements do not meet the condition for a triangle to exist." According to theorem 1, for a triangle to exist, the sum of the lengths of any two sides must be greater than the length of the third side. In this case, the side lengths of 8 cm, 10 cm, and 20 cm are not able to form a triangle since the longest side is greater than the sum of the other two sides.
Therefore, it does not matter whether the angle measurements satisfy theorem 2, because these measurements cannot form a triangle. The angle measurements are also not relevant to the solution, as the lengths of the sides alone can determine if a triangle can be formed.
Consider these theorems.
1. For a triangle to exist, the sum of the lengths of any two sides must be greater than the length of the third side.
2. The sum of the angles of a triangle is 180°.
Which set of side lengths meets the condition for a triangle to exist?
Responses
A 12, 12, 2512, 12, 25
B 6, 8, 146, 8, 14
C 7, 11, 197, 11, 19
D 14, 18, 20
The set of side lengths that meets the condition for a triangle to exist is option C - 7, 11, 19. This is because of theorem 1, which states that for a triangle to exist, the sum of the lengths of any two sides must be greater than the length of the third side. In option A, 12 + 12 is not greater than 25, so it cannot form a triangle. In option B, 6 + 8 is not greater than 14, so it cannot form a triangle. In option D, the longest side 20 is less than the sum of the other two sides 14 and 18, so it cannot form a triangle.
Only option C satisfies the condition, as 7 + 11 is greater than 19, and the other two side sums also satisfy the triangle inequality. Therefore, it is the only set of side lengths that can form a triangle.
Jane is painting her room. She mixes 3 pints of blue paint with 4 pints of red paint to get her desired color. Which equation can be used to find the number of pints of blue paint (x) Jane should mix with 16 pints of red paint?
Responses
A 34
= x16
3 4 = x 16
B x16
= 43
x 16 = 4 3
C 3x
= 164
3 x = 16 4
D 316
= 4x
The correct equation that can be used to find the number of pints of blue paint (x) Jane should mix with 16 pints of red paint is C, which is 3x/7 = 16/7.
To explain why, we can start by creating a proportion of the ratios of blue to red paint that yields the desired color. Since we know that Jane mixes 3 pints of blue paint with 4 pints of red paint, the ratio can be expressed as 3:4 or 3/4. This can be set equal to the unknown ratio of blue to red paint that Jane should mix, which is represented by x:16 or x/16. This can be written as an equation:
3/4 = x/16
To solve for x, we can cross-multiply and simplify:
3 * 16 = 4 * x
48 = 4x
x = 12
Therefore, Jane should mix 12 pints of blue paint with 16 pints of red paint to get her desired color. Dividing both sides of the equation by 7, we get:
3x/7 = 16/7
So the answer is C - 3x/7 = 16/7.
A bag of marbles contains 5 red, 3 blue, 2 green, and 2 yellow marbles.
What is the probability that you choose a blue marble and then another blue marble, assuming you replace the first marble?
Responses
A 124
1 24
B 34
3 4
C 12
1 2
D 116
The probability of choosing a blue marble and then another blue marble, assuming you replace the first marble, can be found by multiplying the probability of choosing a blue marble on the first draw by the probability of choosing a blue marble on the second draw. Since the marble is being replaced after the first draw, the probability of selecting a blue marble remains the same for both draws.
The probability of choosing a blue marble on the first draw is 3/12 (since there are 3 blue marbles out of 12 total marbles in the bag). The probability of choosing another blue marble on the second draw is also 3/12. Multiplying these probabilities together, we get:
(3/12) * (3/12) = 9/144 = 1/16
So the probability that you choose a blue marble and then another blue marble, assuming you replace the first marble, is 1/16. Therefore, the answer is A - 1/24.
bot help me, "Truist Park is located in Cobb County, about 10 miles Northwest of Atlanta, GA” is an example of(1 point)"
Responses
Relative Location
Absolute Location
Hemispheres
Prime meridian
dumb bot
wrong nerd
its A
You said the average of third period was 85
and the average of first period was 75
Then you ask which average was higher?