uestion 1
For the histogram that could be created relative to the table in #10, find the 23rd percentile.
a.-12
b.-8
c.-5
d.-8.5
Question 2
For the histogram that could be created relative to the table in #10, which of the following intervals is the most crowded?
a.-12-13
b.-8-9
c.-9-12
d.-13-16
Question 3
For the given list, find the outlier(s): 6, 58, 100, 56, 52, 49, 58, 65, 58, 59
a.-6
b.-6, 100
c.-100
d.-59
e.-there are none
Question 1
Find the average for: 8, 9, 14, -5, -26, 18,
a.-12
b.-2
c.-14
d.-3
e.-3.5
Question 2
For the given set of numbers, find the Standard deviation: 57.9, 78, 96, 0, -14, 15, 3.
a.-39.88
b.-43.07
c.-12.8
d.-24.8
e.-33.7
Question 3
For the given list, find the median: 188, 98, 41, 0, 68, 143, 193, 169.
a.-120.5
b.-115
c.-34
d.-4.5
e.-112.5
Question 1
Bias in measurement theory is called ____________.
a.-systematic error
b.-sampling error
c.-chance error
Question 2
Find the area under the Normal Curve from -2.5 to 1.1.
a.-82.85%
b.-12.95%
c.-25.89%
d.-98.76%
e.-72.87%
Question 3
For the women age 18-24 in the HANES2 sample, the average height was about 65.2 inches, and the SD was about 1.9 inches. Estimate the percentage of women with heights above 65 inches.
a.-53.99%
b.-92.03%
c.-68.27%
d.-46.02%
e.-7.97%
Question 1
The average of a data set is 5 and the SD of the same data set is 1. If I multiply each data point by 3 and then subtract 2 from each data point, what will the new average and SD be?
a.-avg=17
SD=17
b.-avg=15
SD=13
c.-avg=13
SD=3
d.-Avg=13
SD=3
e.-avg=3
SD=-1
Question 2
Sixteen people in a room have an average height of 5’6″. A seventeenth person enters the room. How tall would he have to be to raise the average height by one inch?
a.-6’1″
b.-5’8″
c.-6’5″
d.-6’2″
e.-6″11″
Question 3
A card is picked at random from a shuffled deck. What is the probability that it is either red or a king?
a.-19/52
b.-18/52
c.-17/52
d.-28/52
e.-30/52
Question 1
The heights of the men age 18 and over in the HANES sample averaged 68.5 inches; the SD was 2.9 inches. Use the normal curve to estimate the percentage of these men with heights between 65 and 68 inches.
a.-none of these
b.-76.99%
c.-32.54%
d.-11.92%
e.-44.46%
Question 2
The average on an exam was 23.5 and the SD was 5.5. Use the normal curve to estimate the percentage of students who made between 18 and 29.
a.-20%
b.-68.27%
c.-55%
d.-95.43%
e.-16.64%
Question 3
A car dealer has 5 red cars and 3 blue cars. The purchasing department of a company will buy two cars from this dealership. If the purchasing department selects the two cars at random, what is the chance that both cars are red?
a. 25/64
b. 1/14
c. none of these
d. 5/14
e. 5/8
