question 16

The length of horse pregnancies from conception to birth varies according to a roughly normal distribution with mean 335 days and standard deviation of 10 days.

What is the probability that a randomly selected horse pregnancy will be more than 348 days? Round the percentage to one decimal place, like 68.1%.

On your scratch paper:

• label the normal curve using the given information
• write down what was entered into your calculator
• number your scratch work with this question number.

Question 2 17

The height of adult women are normally distributed with a mean of 65 inches and a standard deviation of 3 inches. If Marisa has a height in the 48th percentile, what is Marisa's height? Round your final answer to one decimal place and don't forget to include the units.

On your scratch paper:

• write down what was entered into your calculator
• number your scratch work with this question number.

Question 15

An elementary school is assessing how many activities in which a parent is involved. The table shows the number of activities a parent of a K-5th grade student is involved in.

Number of Activities	Probability
0	0.035
1	0.074
2	0.197
3	0.320
4	0.374

What is the expected number of activities in which a parent will be involved? Round your answer to three decimal places (like 3.178). Show your work on your scratch paper and number your scratch work with this question number.

Question 14

An elementary school is assessing how many activities in which a parent is involved. The table shows the number of activities a parent of a K-5th grade student is involved in.

Number of Activities	Probability
0	0.035
1	0.074
2	0.197
3	0.320
4	0.374

What is the probability that a parent is involved in 2 or 3 activities? Write your final answer as a percentage with one decimal place (like 68.1%). Show your work on your scratch paper and number your scratch work with this question number.

Question 11

The Center for Disease Control has found that the probability a woman in the United States dies from kidney disease is 7.6%. What is the probability that a women would not die from kidney disease? Write your final answer as a percentage with one decimal place (like 68.1%). Show your work on your scratch paper and number your scratch work with this question number.

Question 8

The figure shows side-by-side box plots of the miles per gallon by vehicle origin.