1. sabrina has the following math quiz scores. 19, 24, 25, 17, 13, & 18. find her mean score, to the nearest tenth if necessary.= 13 is this correct?

2. eleven applications for a certain position had the following ages. 32, 33 ,25, 36, 48, 51, 28, 23, 54, 52, 45. what was the median age?=51 is this correct?
3. clay is building a pen for his dog. he plans to make it rectangular in shape & measuring 40ft. by 50ft.. he can buy fencing for $3.75 per ft. how much will the fencing for his dog pen cost? =$187.50 is this correct?
thank you.

1. 13 is not correct

Mean=(19+24+25+17+13+18)/6=?

2. 51 is incorrect
32, 33 ,25, 36, 48, 51, 28, 23, 54, 52, 45
Sort them out in ascending order:
23,25,28,32,33,36,45,48,51,52,54
The middle number is the median.

3. $187.50 is not correct.
The perimeter is 2(40+50)=180 ft.
$187.50 is almost $1 per ft. The actual cost is $3.75 per foot, so multiply $3.75 and 180 to give the fencing cost.

1. No, it's not correct. Add the six scores and divide by 6 to find the mean.

2. Wrong. The median is the middle number when you arrange the ages in numerical order.

3. Way off. Please try again.

1. To find the mean score, you need to add up all the scores and divide the sum by the total number of scores. In this case, the scores are 19, 24, 25, 17, 13, and 18. Let's calculate the mean.

Score 1: 19
Score 2: 24
Score 3: 25
Score 4: 17
Score 5: 13
Score 6: 18

To find the mean, add up all the scores: 19 + 24 + 25 + 17 + 13 + 18 = 116
Now divide the sum by the total number of scores (which is 6): 116 ÷ 6 = 19.33

Rounding to the nearest tenth, the mean score is approximately 19.3, not 13. So, 13 is NOT correct.

2. To find the median age, you need to arrange the ages in ascending order and find the middle value. In this case, the ages are: 32, 33, 25, 36, 48, 51, 28, 23, 54, 52, and 45. Let's calculate the median.

First, arrange the ages in ascending order: 23, 25, 28, 32, 33, 36, 45, 48, 51, 52, 54

Since there are 11 ages, the middle value would be the 6th age when arranged in ascending order. So, the median age is 36, not 51. Therefore, 51 is NOT correct.

3. To calculate the cost of the fencing for Clay's dog pen, you need to multiply the perimeter of the rectangular shape by the cost of fencing per foot. In this case, the dimensions of the pen are 40ft by 50ft, and the cost of fencing is $3.75 per foot. Let's calculate the cost.

The perimeter of a rectangle is found by adding the lengths of all four sides. In this case, the perimeter is: 40 + 40 + 50 + 50 = 180 feet.

Now, multiply the perimeter by the cost of fencing per foot: 180 ft × $3.75/ft = $675.

So, the cost of the fencing for Clay's dog pen is $675, not $187.50. Therefore, $187.50 is NOT correct.

You're welcome! If you have any more questions, feel free to ask.