Consider the following binomial random variables. (a) The number of tails seen in 43 tosses of a quarter. (i) Find the mean. (Give your answer correct to one decimal place.) (ii) Find the standard deviation. (Give your answer correct to two decimal places.) (b) The number of left-handed students in a classroom of 57 students (assume that 7% of the population is left-handed). (i) Find the mean. (Give your answer correct to one decimal place.) (ii) Find the standard deviation. (Give your answer correct to two decimal places.) (c) The number of cars found to have unsafe tires among the 404 cars stopped at a roadblock for inspection (assume that 17% of all cars have one or more unsafe tires). (i) Find the mean. (Give your answer correct to one decimal place.) (ii) Find the standard deviation. (Give your answer correct to two decimal places.) (d) The number of melon seeds that germinate when a package of 45 seeds is planted (the package states that the probability of germination is 0.82. (i) Find the mean. (Give your answer correct to one decimal place.)
Consider the following binomial random variables. (a) The number of tails seen in 43 tosses of a quarter. (i) Find the mean. (Give your answer correct to one decimal place.) (ii) Find the standard deviation. (Give your answer correct to two decimal places.) (b) The number of left-handed students in a classroom of 57 students (assume that 7% of the population is left-handed). (i) Find the mean. (Give your answer correct to one decimal place.) (ii) Find the standard deviation. (Give your answer correct to two decimal places.) (c) The number of cars found to have unsafe tires among the 404 cars stopped at a roadblock for inspection (assume that 17% of all cars have one or more unsafe tires). (i) Find the mean. (Give your answer correct to one decimal place.) (ii) Find the standard deviation. (Give your answer correct to two decimal places.) (d) The number of melon seeds that germinate when a package of 45 seeds is planted (the package states that the probability of germination is 0.82. (i) Find the mean. (Give your answer correct to one decimal place.)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Consider the following binomial random variables.
(a) The number of tails seen in 43 tosses of a quarter.
(b) The number of left-handed students in a classroom of 57 students (assume that 7% of the population is left-handed).
(c) The number of cars found to have unsafe tires among the 404 cars stopped at a roadblock for inspection (assume that 17% of all cars have one or more unsafe tires).
(d) The number of melon seeds that germinate when a package of 45 seeds is planted (the package states that the probability of germination is 0.82.
(i) Find the mean. (Give your answer correct to one decimal place.)
(ii) Find the standard deviation. (Give your answer correct to two decimal places.)
(ii) Find the standard deviation. (Give your answer correct to two decimal places.)
(b) The number of left-handed students in a classroom of 57 students (assume that 7% of the population is left-handed).
(i) Find the mean. (Give your answer correct to one decimal place.)
(ii) Find the standard deviation. (Give your answer correct to two decimal places.)
(ii) Find the standard deviation. (Give your answer correct to two decimal places.)
(c) The number of cars found to have unsafe tires among the 404 cars stopped at a roadblock for inspection (assume that 17% of all cars have one or more unsafe tires).
(i) Find the mean. (Give your answer correct to one decimal place.)
(ii) Find the standard deviation. (Give your answer correct to two decimal places.)
(ii) Find the standard deviation. (Give your answer correct to two decimal places.)
(d) The number of melon seeds that germinate when a package of 45 seeds is planted (the package states that the probability of germination is 0.82.
(i) Find the mean. (Give your answer correct to one decimal place.)
(ii) Find the standard deviation. (Give your answer correct to two decimal places.)
(ii) Find the standard deviation. (Give your answer correct to two decimal places.)
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