Calculate the range of the following data set:
8, 8, 4, 1, 9, 12, 8, 5, 5
A) 12 B) 11 C) 1 D) 13
Q. 2Each year advertisers spend billions of dollars purchasing commercial time on network
television. In the first 6 months of one year, advertisers spent 1.1 billion.
Who were the largest
spenders? In a recent article, the top 10 leading spenders and how much each spent (in million of
dollars) were listed:
Company A 70.7 Company F 24.8
Company B 63.9 Company G 24
Company C 55.7 Company H 22.7
Company D 54.2 Company I 23.2
Company E 30.3 Company J 20.1
Calculate the sample variance.
A) 389.965 B) 3763.035 C) 1864.521 D) 2080.829
Q. 3A one -week study revealed that 60 of a warehouse store's customers are women and that 30
of women customers spend at least 250 on a single visit to the store.
Find the probability that a
randomly chosen customer will be a woman who spends at least 250.
A) 0.50 B) 0.36 C) 0.18 D) 0.90
Q. 4In general, the sample mean is a better estimator of the population mean for larger sample sizes.
A) True B) False
Q. 5Suppose a basketball player is an excellent free throw shooter and makes 91 of his free throws
(i.e., he has a 91 chance of making a single free throw). Assume that free throw shots are
independent of one another.
Find the probability that the player misses four consecutive free
throws.
A) 0.3143 B) 0.0001 C) 0.9999 D) 0.6857
Q. 6Secured credit refers to credit where there is a second party to pay the debt in the event that the
original debtor does not.
Indicate whether the statement is true or false
Quick Reply
