Swinging Sammy Skor's batting prowess was simulated to get an estimate of the probability that
Sammy will get a hit. Let 1 = HIT and 0 = OUT. The output from the simulation was as follows.
1 0 0 0 1 0 0 1 0 0 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 0 0 1 1 1 1 0 0 0 0 0 1 1 1 1
Estimate the probability that he gets a hit.
A) 0.286 B) 0.301 C) 0.476 D) 0.452
Q. 2The heights of the adults in one town have a mean of 67.1 inches and a standard deviation of 3.5
inches. What can you conclude from Chebyshev's theorem about the percentage of adults in the
town whose heights are between 60.1 and 74.1 inches?
A) The percentage is at most 75 B) The percentage is at most 95
C) The percentage is at least 95 D) The percentage is at least 75
Q. 3Flip a coin twice.
A) HH TT HT HT B) HH HT TH TT C) HH HT TT D) HT TH
Q. 4The local Tupperware dealers earned these commissions last month:
2894.21 1777.15 2144.77 4096.37 4046.29
1786.37 3296.69 4086.27 2784.22 4027.79
What was the mean commission earned? Round your answer to the nearest cent.
A) 3094.01 B) 3867.52 C) 3437.79 D) 3088.01
Q. 5A comparison is made between summer electric bills of those who have central air and
those who have window units.
May June July Aug Sept
Central 32 64 80 90 65
Window 15 84 99 120 40
What will be an ideal response?
Q. 6A company had 80 employees whose salaries are summarized in the frequency distribution below
Find the standard deviation.
Salary (dollars) Employees
5,001-10,000 19
10,001-15,000 14
15,001-20,000 12
20,001-25,000 16
25,001-30,000 19
A) 7967.5 B) 7588.1 C) 8195.1 D) 8422.8
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