55) The analytic scores on a standardized aptitude test are known to be normally distributed with mean it = 610 and
standard deviation o = 115.
(a) Draw a normal curve with the parameters labeled.
(b) Shade the region that represents the proportion of tes
Dr. Heather Gamber Name:
Solve the problem.
1) Which of the following is not true of statistics?
A) Statistics collects and summarizes data.
B) Statistics allows conclusion about the data to be drawn.
C) Statistics answers question
13) The grade point averages for 40 students are listed below. Construct a frequency distribution, a relative
frequency distribution, a cumulative frequency distribution, and a relative cumulative frequency distribution
using eight classes.
20 3.2 1.8 2.9
Explain what is misleading about the graphic.
The volume of our sales has doubled!
A) The length of a side has doubled, but the area has been multiplied by 8.
B) The length of a side has doubled, but the area has been unchanged.
C) The length of a s
10) Scott Tarnowski owns a pet grooming shop. His prices for grooming dogs are based on the size of the dog. His
records from last year are summarized below.
Construct a frequency table including relative freq
25) To study the physical fitness of a sample of 28 people, the data below was collected representing the number oi
sit-ups that a person could do in one minute.
10 12 12 15 15 15 18
20 22 25 25 26 29 30
32 33 40 40 40 45 46
47 48 48 50 52 53 56
Solve the problem.
30) A county real estate appraiser wants to develop a statistical model to predict the appraised value of houses in a
section of the county called East Meadow. One of the many variables thought to be an important predictor of
33) Use the spinner below to answer the question. Assume that it is equally probable that the pointer will land on
any one of the five numbered spaces. If the pointer lands on a borderline, spin again.
Find the probability that the arrow will land on 1 or
41) A human gene carries a certain disease from the mother to the child with a probability rate of35%. That is, there
is a 35% chance that the child becomes infected with the disease. Suppose a female carrier of the gene has five
children. Assume that the
50) Draw the probability histogram and label the mean for n = 6 and p = 0.4
51) High temperatures in a certain city for the month of August follow a uniform distribution over the interva168F
to 88F. What is the probability that a randomly selected August