At a police shooting range, it is observed that the number of times, X, that a recruit misses a target before getting the first direct hit is a random variable. The probability of missing the target at each trial is 1/3 and the results of different trials are independent. 1. Obtain the distribution of X. 2. A recruit is rated poor, of he shoots at least four times before the first direct
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
At a police shooting
recruit misses a target before getting the first direct hit is a random variable. The
probability of missing the target at each trial is 1/3
and the results of different trials
are independent.
1. Obtain the distribution of X.
2. A recruit is rated poor, of he shoots at least four times before the first direct
hit. What is the probability that a recruit picked at random will be rated poor?
Step by step
Solved in 2 steps with 2 images
