Use the probability distribution to complete parts (a) and (b) below.The number of school-related extracurricular activities per studentActivities4 56Probability01237 D0.061 0.121 0.164 0.179 0.208 0.129 0.083 0.055(a) Find the mean, variance, and standard deviation of the probability distribution.The mean is.(Round to one decimal place as needed.)The variance is(Round to one decimal place as needed.)The standard deviation is.(Round to one decimal place as needed.)(b) Interpret the results.The mean is, so the average student is involved intypical number of activities per student(Round to one decimal place as needed.)The standard deviation isso the

Suppose be the number of school-related extracurricular activities per student.The probability…

Answered: Use the probability distribution to…

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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The histogram shows the reviewer ratings on a scale from 1 (lowest) to 5 (highest) of a recently published book. Reviewer Ratings 0.5- 0.4- 0.3- 0.2- 0.14 0.022 0.01 0.444 (a) Find the mean, variance, and standard deviation of the probability distribution. (b) Interpret the results. 0.249 0.214 0.071 Rating (a) The mean is (Type an integer or a decimal. Do not round.) The variance is. (Round to two decimal places as needed.) The standard deviation is (Round to two decimal places as needed.) (b) Interpret the results. Select all that apply. O A. The typical rating deviates from the mean by about 4. O B. The average rating for the book is approximately 4. O C. The typical rating deviates from the mean by about 1. O D. The average rating for the book is approximately 1. Probability
Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 0 2 Probability 0.638 0.089 1 0.223 0= 3 0.026 4 0.015 5 0.008 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. (Round to one decimal place as needed.) Find the variance of the probability distribution. o² = (Round to one decimal place as needed.) Find the standard deviation of the probability distribution. (Round to one decimal place as needed.) (b) Interpret the results in the context of the real-life situation. A. A household on average has 0.6 dog with a standard deviation of 15 dogs. B. A household on average has 1.0 dog with a standard deviation of 0.6 dog. C. A household on average has 0.9 dog with a standard deviation of 1.0 dog. OD. A household on average has 0.6 dog with a standard deviation of 1.0 dog. 0
Save Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 1 4 Probability 0.262 0.301 0.243 0.138 0.042 0.014 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is . (Round to one decimal place as needed.) Incorrect
Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 1 2 4 Probability 0.264 0.290 0.240 0.148 0.042 0.016 ..... (a) Find the mean, variance, and standard deviation of the probability distribution.
Please also find variance and standard deviation
The probability distribution below is for the random variable X = the number of credits taken during the fall semester by a randomly selected student at a large university. Calculate the mean of X. Round to the hundredths place. Credits 14 15 16 17 Probabiblity 0.05 0.65 0.20 0.10
Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 0 1 2 3 4 5 6 7 Probability 0.061 0.122 0.164 0.178 0.211 0.127 0.082 0.055 (a) Find the mean, variance, and standard deviation of the probability distribution. (b) Interpret the results. The mean is ______so the average student is involved in_____The standard deviation is_____so the typical number of activities per student deviates_______
Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 0 1 3 Probability 0.263 0.299 0.145 2 0.238 0.037 5 D 0.018 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is (Round to one decimal place as needed.)
Complete the table below to find the mean, variance and standard deviation. Round all values to 3 decimal places. P(z) P(z) (11- 2). (z - 4)? (2- 4 P(z) 0.3 1 0.1 0.15 0.45 Variance Mean ElP(z)] || = 1 Find the standard deviation of this probability distribution. Standard Deviation o =
Use the probability distribution to complete parts (a) and (b) below. The number of defects per 1000 machine parts inspected Defects 1 2 3 4 5 Probability 0.259 0.293 0.244 0.150 0.037 0.017 ... (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.) The standard deviation is (Round to one decimal place as needed.) (b) Interpret the results. The mean is , so the average batch of 1000 machine parts has The standard deviation is so the typical number of defects in a batch of 1000 (Round to one decimal place as needed.)
Compute the variance of the probability distribution in the table below. Outcome Probability 73 0.5 74 0.2 0.1 0.2 75 76 Find the variance. 02= (Type an integer or a decimal.)
Decide whether you can use the normal distribution to approximate the binomial distribution. If you can, use the normal distribution to approximate the indicated probabilities and sketch their graphs. If you cannot, explain why and use the binomial distribution to find the indicated probabilities. A survey of adults found that 6% say their favorite sport is auto racing. You randomly select 600 adults and ask them to name their favorite sport. Complete parts (a) through (d). ..... Determine whether a normal distribution can be used to approximate the binomial distribution. Choose the correct answer below. O A. No, because nq <5. B. No, because np <5. OC. Yes, because both np 25 and nq 2 5. Click to select your answer and then click Check Answer. Clear All Final Check Get More Help - HIST Sor

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