Sata HW

QUESTION 1

Which of the following value cannot be probability?

0   1   -1   .389   3/5

QUESTION 2

. Which of the following value cannot be probability?

2.53       0.999       0.0014        0.842        0.276

QUESTION 3

If a year is selected at random, find the probability that Thanksgiving Day will be on a Wednesday.

QUESTION 4

When a drug was clinically tested, 17 patients reported headaches and 18 did not. Use this sample to estimate the probability that the drug user will experience a headache. (Up to three decimal place, please)

QUESTION 5

Find the probability that a randomly selected adult American believes that secondhand smoke is harmful. Here are the results from a Gallop poll: Among 1038 randomly selected adults, 63 said that secondhand smoke is  not at all  harmful. (Up to three decimal place, please)

QUESTION 6

Find the probability that when a couple has 3 children, they will have exactly 2 boys. Assume that boys and girls are equally likely and that the gender of any child is not influenced by the gender of any other child. (up to three decimal place, please)

QUESTION 7

Consider the data below:

For those babies discharged early, find the probability of being rehospitalized within a week. (up to three decimal place, please)

QUESTION 8

Consider the data below:

for those babies discharged early, find the odds in favor of being rehospitalized early. (up to three decimal place, please)

QUESTION 9

Fill the blank:

From the data given below, it indicates that the odds in favor of rehospitalization are ____________ times higher for babies discharged early when compared to those discharged late. This suggests that newborns discharged early are at substantially increased risk of rehospitalization. 

QUESTION 10

The table below describes the results from a clinical trial of a drug. 

Compute the number needed to treat for headache. (Round-off rule: If the calculated value of the number needed to treat is not a whole number, round it up to the next larger whole number)

( Note that the direction of table is not the same as what we had in class. That is, the column represents treatment/placebo and the row represents disease/no disease. So you may need to adjust the formula to compute a measurement. )

QUESTION 11

The table below describes the results from a clinical trial of a drug. 

Compute the odds ratio for headaches in the treatment group compared to the placebo group. (up tp three decimal place, please)

1 points   

QUESTION 12

1. Consider the data below:

For those in the treatment group, find the probability that the subject experienced a side effect. (up to three decimal place, please)

QUESTION 13

Consider the data below:

Find the value of the absolute risk reduction for side effects in the treatment and placebo groups. (up to three decimal palce)

QUESTION 14

Consider the data below:

Find the value of the odds ratio for side effect. (up to three decimal place.)

QUESTION 15

The crude death rate for a country was recently 3, and that rate was computed using a multiplier of k=1,000. Find the probability that a randomly selected person in the country died within the year. (up to  four  decimal place, please)

QUESTION 16

In a recent year in a county, there were 57,605 deaths, and 3,867 of them were due to heart disease. The cause-of-death ratio is expressed as follows:

where k=100. Find the cause-of-death ratio for heart disease in the county. (up to three decimal place, please)

QUESTION 17

Using the data given in the textbook p.139 for Exercises 1-8, find the fetal mortality rate. (up to one decimal place)

QUESTION 18

Using the data given in the textbook p.139 for Exercises 1-8, find the crude birth rate. (up to one decimal place)

QUESTION 19

Using the data given in the textbook p.139 for Exercises 1-8, find the general fertility rate. (up to one decimal place)

QUESTION 20

Using the data given in the textbook p.139 for Exercises 1-8, find the HIV mortality rate for HIV-infected persons. (up to one decimal place)