Question
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.
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.
Answers
MathMate
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,<i>36</i>,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.
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,<i>36</i>,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.
Ms. Sue
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.
2. Wrong. The median is the middle number when you arrange the ages in numerical order.
3. Way off. Please try again.