Which events are NOT independent?
Landing on heads after tossing a coin and rolling a 3 on a 6- sided number cube
Choosing a marble from a jar and landing on tails after tossing a coin
Choosing a 5 from a deck of cards replacing it and then choosing an ace as the second card
Choosing a card at random from a deck without replacing it and choosing another card at random
If a coin is tossed and a number cube is rolled what is the probability that the coin shows heads and the number cube shows 3?
1/2
1/9
1/6
1/12
The probability of winning a game is 25%. How many times should you expect to win if you play 36 times?
A. 3 times
B. 7 times
C. 9 times
D. 11 times
A survey showed that 56% of car owners prefer four – door cars, 31% prefer two – door cars, and 13% have no preference. You ask 300 people. How many do you think will prefer four-door cars?
A. 218 people
B. 168 people
C. 233 people
D. 68 people
Tony works in a factory that produces 1,000 computers each day. When 50 computers were sampled, it was found that 7 were defective. Estimate how many defective computers are made each day.
A. 140 computers
B. 7 computers
C. 169 computers
D. 265 computers
An ice cream shop offers 5 different flavors of ice cream and 9 different toppings. How many choices are possible for a single serving of ice cream with one topping?
14 choices
45 choices
52 choices
63 choices
i need help on the test please now........someone
Pleaseeeee help im not tying to cheat im struggling so bad my mom put me in this crappy school :(
okay sorry write teacher
okay this is what I thought
1. A
2. B
3.B
4.D
5. A
6.C
I hate online school brub
His answers are wrong plz listen to me
I really need help with this test.
The total number of possible outcomes is the product of the number of options for each accessory:
Total possible outcomes = 3 necklaces * 2 bracelets * 3 hats = 18
The desired outcome is Sammy choosing a red necklace and a yellow bracelet. According to the table, the probability of each of these individual events occurring is:
Probability of choosing a red necklace = 1/4
Probability of choosing a yellow bracelet = 1/2
The probability of both of these events happening together is the product of the individual probabilities:
Probability of choosing a red necklace and yellow bracelet = (1/4) * (1/2) = 1/8
So, the probability of Sammy choosing a red necklace and a yellow bracelet is 1/8 or 0.125.
you have 2, 5, 6 right
It would help if you numbered your questions.
1. your last choice is dependent , thus NOT independent
D
2. prob(heads and 3) = (1/2)(1/6) = 1/12
D
3. prob = 1/4, so of 36 cases, we can expect 9
C
4. prob(4door) = .56, so of 300 asked we expect 168
B
5. Prob(defective) = 7/50
number defective in 1000 = (7/50)(1000) = 140
A , YEAHH, you guessed one right!!
6. number of cones = (5)(9) = 45
B
These are very basic and elementary question in probability, I think you are just guessing