From the above table mean =9.79
And standard deviation =1.86
4. The number X of days in the summer months that a construction crew cannot work because of the weather has the pr...
An instant lottery ticket costs $2. Out of a total of $10,000 tickets printed for this lottery, 500 tickets contain a prize of $5 each, 125 tickets have a prize of $10 each, 6 tickets have a prize of $1000 each, and 1 ticket has a prize of $5000. Let X be the random variable that denotes the net amount a player wins by playing this lottery. Write the probability distribution of x. Enter the exact answers. Enter your answers...
SEON BACK CES Chapter 05, Section 5.3, Problem 024 An instant lottery ticket costs $2. Out of a total of 10,000 tickets printed for this lottery, 500 tickets contain a prize ot $3 each, 125 tickets have a prize of $10 each, 2 tickets have a for this 000 each, and 1 ticket has a prze of $500. Let x be the random variable that denotes the net a playing this letery. toplayer wins by write the probability distribution of...
Chapter 05, Section 5.4, Problem 036 According to a survey conducted at the local OMV, 50% of drivers who rive to work stated that they regularly exceed the posted speed limit on their way to work. Suppose that this result is true for the population of drivers who drive to work. A random sample of 15 drivers who drive to work is selected. Use the binomial probabilities table (Table 1 of Appendix 8) or technology to find to 3 deimal...
i need help thank you 1. A shopping mall estimates the probability distribution of the number of stores mall customers actually enter, as shown in the table x 0 1 2 3 4 5 6 7 8 P(x) 0.05 0.07 0.12 0.15 0.2 0.13 0.11 0.1 0.07 a. Find the mean and standard deviation of the number of stores entered. (10%) b. Refer to Question a Suppose that, on average, customers spend 10 in each store they enter. Find the...
Yosemite National Park has five High Sierra camps arranged in a 49-mile loop. The camps are separated by 8–10 miles, which allows you to hike from one camp to the next in a day. Each camp provides tent cabins with four to six beds per cabin and serves family-style meals. Because of the popularity of the loop, you must enter a lottery in the fall for the following summer, and in a given year, approximately 25% of the groups are...
The number of days, X, that it takes the post office to deliver a notarized letter cross- country between City A and City B has the probability distribution 4 f(x) .5 3.2 (a) Find the expected number of days and the standard deviation of the number of days. (b) A company in City A sends a notarized letter to a company in City B with a notarized return receipt request that is to be mailed immediately upon receiving the letter....
What are the steps to solve a and b? In a lottery, you bet on a s digit number between 0 0000 and 11 11 For a S1 bet, you win S 700 000 you are correct. The mean and Standard de ation of the probability distribution or he ottery nings are μ 07 hat cents and σ = 700.00. Joan figures that if she plays enough times every day, eventually she will strike it rich, by the aw of...
In the following probability distribution, the random variable x represents the number of activities a parent of a 6 th- to 8th-grade student is involved in. Complete parts (a) through (f) below.x01234P(x)0.3670.1330.2090.1160.175(a) Verify that this is a discrete probability distribution.This is a discrete probability distribution because the sum of the probabilities is _______ and each probability is _______ (b) Graph the discrete probability distribution. Choose the correct graph below.(c) Compute and interpret the mean of the random variable x .The mean...
In the following probability distribution, the random variable x represents the number of activities a parent of a K to 5 th-grade student is involved in. Complete parts (a) through (f) below.x01234P(x)0.1670.1940.3440.1780.117(a) Verify that this is a discrete probability distribution.This is a discrete probability distribution because the sum of the probabilities is _______ and each probability is _______ (b) Graph the discrete probability distribution. Choose the correct graph below.(c) Compute and interpret the mean of the random variable x .The mean...
1. The mean arrival rate of flights at O’Hara International Airport in marginal weather is 195 flights per hour with a population standard deviation of 13 flights per hour. To increase arrivals, a new air traffic control procedure is implemented. In the next 30 days of marginal weather, the mean number of arrivals increased to 200. Given this information, please answer the following questions: A. Compute the standard error of the sampling distribution of mean arrival rates? B. What assumption...