Question
In: Statistics and Probability
Probability and Statistics Could you please solve the following questions with specifying the answers A. If...
Probability and Statistics
Could you please solve the following questions with specifying the
answers
A. If you win $100 for rolling a 12, win $10 for rolling a number less than 6, and lose $4 for rolling anything else, what are your expected winnings per play?
a. $1.94 b. $4.72 c. $2.78 d. -$.68
B. A committee of 7 is be selected from a group of 22 people. How many such committees are possible?
a. 22,254 b. 319,770 c, 170,544 d. 101,458
C. A woman plans on having four children. What is the probability she will have at most 2 boys?
a. 11/16 b. 1/2 c. 9/16 d. 6/16
Solutions
orchestra answered 2 years agoRelated Solutions
Probability and Statistics Could you please solve the following questions with specifying the answers A. What...
Probability and Statistics
Could you please solve the following questions with specifying the
answers
A. What is the probability of getting a sum of
exactly 11 when rolling a pair of dice given that the sum is at
least 9
4/36 b.
2/10 c.
9/36 d. 4/9
B. Scores on a test are normally distributed
with a mean of 520 and a standard deviation of 50. George scores
622 on the test. He was in which percentile approximately?
84th
percentile b. 98th
percentile
c....
Probability and Statistics Could you please solve the following questions with specifying the answers A. When...
Probability and Statistics
Could you please solve the following questions with
specifying the answers
A. When finding confidence intervals, the
interval is smaller if
a.sample size and standard deviation are bigger
b.sample size and standard deviation are smaller
c.sample size is bigger, but the standard deviation is
smaller
d.sample size is smaller, but standard deviation is
bigger.
B. If the birth weights of the babies born
annually in a hospital is Normal with a mean of 5 pounds 10 ounces...
Probability and Statistics Could you please solve the following questions with specifying the answers A. What...
Probability and Statistics
Could you please solve the following questions with
specifying the answers
A. What is the probability that z, the standard
normal distribution, is less than 1.75 standard deviations below
the mean of zero?
a. 5% b.
4% c.
6% d. 7.4%
B. If two random samples of the heights of
adult males in New York are taken, one of 400, the other of 900
people, which one would likely have the larger range from shortest
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a. the 400...
Probability and Statistics Could you please solve the following questions with specifying the answers A. Thirty-nine...
Probability and Statistics
Could you please solve the following questions with specifying the
answers
A. Thirty-nine percent of the houses in a
certain neighborhood read the New Yorker, 43 percent read the
Philadelphia Inquirer, and 9 percent read both. What percent read
at least one of these publications?
a. 64% b.
79% c.
82% d.
73%
B. What is the probability of getting at least
one 10 in twenty rolls of a pair of dice?
a. (33/36)20
b.
1-(3/36)20 c. 1-
(33/36)20 d.
1-20(33/36)
C....
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