Frequency Distribution The total number of goals scored in a World Cup soccer matchapproximately follows the following distribution.Goals Scored 0 1Probability2345670.08 0.2 0.26 0.2 0.14 0.07 0.03 0.02(a) Let X be the number of goals scored in a randomly selected World Cup soccer match.Write out the PMF for X and explain why it is a valid PMF.(b) Compute the mean and variance of X.

a) The total number of goals scored in a World Cup soccer match with associated probability is…

Answered: Frequency Distribution The total number…

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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Use the probability distribution to complete parts (a) and (b) below. The number of school-related extracurricular activities per student Activities 0 4 5 1 2 3 6 7 0 Probability 0.057 0.121 0.163 0.177 0.216 0.127 0.086 0.053 (a) Find the mean, variance, and standard deviation of the probability distribution. The mean is 3.4. (Round to one decimal place as needed.) The variance is (Round to one decimal place as needed.)
Male Female O The data represent the number of driving fatalities for a certain area by age for male and female drivers. under 16 16-20 21-34 151 126 6719 2411 12,497 4855 35-54 12,432 4589 55-69 4773 1821 70 and over 2971 1256 (a) What is the probability that a randomly selected driver fatality who was female was 21 to 34 years old? The probability that a randomly selected driver fatality who was female was 21 to 34 years old is approximately (Round to three decimal places as needed.) (b) That is the probability that a randomly selected driver fatality who was 21 to 34 was female? The probability that a randomly selected driver fatality who was 21 to 34 was female is approximately. (Round to three decimal places as needed.) Enter your answer in each of the answer boxes. Show Work DII DD 80 p00 000 F9 F10 F11 F12 F6 F7 esc F5 E4 F2 F3 & ! @ %23 $ 2 3 4 5 7 8 9 delete 1 { } Q W E R Y P tab K A S D caps lock I
18: Answer
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 0.057 0.124 0.164 0.178 0.210 0.128 0.086 0.053 (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 in (Round to one decimal place as needed.) ... The standard deviation is so the typical number of activities per student
Find the mean, the median, and all modes for the data in the given frequency distribution. (Round your answers to one decimal place. If there is more than one mode, enter your answer as a comma-separated list. If an answer does not exist, enter DNE.) mean median mode(s) Points Scored by Lynn Points scored in abasketball game Frequency 2 8 8 5 9 8 13 4 14 1 18 3 21 1
The table shows population statistics for the ages of Best Actor and Best Supporting Actor winners at an awards ceremony The distributions of the ages are approximately bell-shaped. Compare the z-scores for the actors in the following situation. Best Actor Best Supporting Actor H= 51.0 H = 43.0 6 = 6.9 0 = 16 In a particular year, the Best Actor was 50 years old and the Best Supporting Actor was 47 years old. Determine the z-scores for each. Best Actor: z = Best Supporting Actor: z = (Round to two decimal places as needed.) Clear All Check Answer Help Me Solve This View an Example Get More Help - 10:22 PM P Type here to search 68°F Cloudy ^ 24 88 10/7/2021 10.0517 Esc FI C F5 F2 F3 F4 F6 F7 F8 PrtSc Insert Delete F9 F10 F11 F12 C@ 3 6 80 Backspace Num Lock T Y U P 7 Home PaUp S D G +II HI 5 LL LU
K The following data represent the number of drivers involved in a fatal crash in 2016 in various light and weather conditions. Complete parts (a) through (c) below. Click the icon to view the data for fatal crashes in 2016. (a) Among fatal crashes in unknown weather conditions, what is the probability that a randomly selected fatal crash occurs when it is dawn/dusk? The probability that a randomly selected fatal crash in unknown weather conditions occurs when it is dawn/dusk is approximately. (Round to three decimal places as needed.) Data table Weather Daylight Dark, but Lighted 5875 497 51 54 255 Normal Rain Snow/Sleet Other Unknown 14,307 875 219 125 810 (...) Dark 8151 681 156 220 548 Dawn/Dusk Other 1183 87 40 71 65 8 2 9 133 X

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