Question: help thanks so much Question 3 0/1 pt 9 3 99 @ Details Suppose that the speed at which cars go on the freeway is

help thanks so much

Question 3 0/1 pt 9 3 99 @ Details Suppose that the speed at which cars go on the freeway is normally distributed with mean 74 mph and standard deviation 9 miles per hour. Let X be the speed for a randomly selected car. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( 74 Enter an integer or decimal number, accurate to at least 4 decimal places [more..] b. If one car is randomly chosen, find the probability that it is traveling more than 71 mph. c. If one of the cars is randomly chosen, find the probability that it is traveling between 73 and 78 mph. d. 80% of all cars travel at least how fast on the freeway? mph

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

1,2, and 3 please courses/355107/assignments/3998589?module_item_id=8 4698 Question 1 0/1 pt 9 10 99 @ Details A particular fruit's weights are normally distributed, with a mean of 293 grams and a...

Question 12 0/1 pt 1 3 99 0 Details A set of data items is normally distributed with a mean of 111 and a standard deviation of 30. Convert each of the following data items to a z-score. Round your...

8:02 Done Reader View Available C Chapter 7: Central Limit Theorem (Sums) Score: 0/5 0/5 answered Progress saved Done B & Voce . . . . Question 3 > 0/1 pt 9 3 99 0 Details Suppose that the amount of...

answer a question 5:39 Done myopenmath.com AA C Chapter 9.2 - 9.3 Homework Score: 0/11 0/11 answered Progress saved Done Vo O . . . Question 5 0/1 pt 9 3 99 0 Details Test the claim that the mean GPA...

Please help on 11 Question 11 0/1 pt 9 10 99 0 Details Ramp metering is a traffic engineering idea that requires cars entering a freeway to stop for a certain period of time before joining the...

Please help on 1,2,and 3 myopenmath.com Question 1 0/1 pt 5 10 99 @ Details You wish to test the following claim (H1) at a significance level of a = 0.05. Ho: u = 66.7 H1: 1 # 66.7 You believe the...

10:29 Done myopenmath.com AA C Chapter 7: Central Limit Theorem (Mean) Score: 0/7 0/7 answered Progress saved Done . . . . Question 5 0/1 pt 9 3 99 0 Details The average score for games played in the...

. Question 2 > 0/1 pt 9 3 99 0 Details The average time to run the 5K fun run is 23 minutes and the standard deviation is 2.5 minutes. 48 runners are randomly selected to run the 22 5K fun run. Round...

. Question 18 0/5 pts 9 2 0 Details Suppose that the speed at which cars go on the freeway is normally distributed with mean 65 mph and standard deviation 9 miles per hour. Let X be the speed for a...

Question 13 0/1 pt 9 3 98 8 Details Here is a data set (n = 117) that has been sorted. 60.3 61.6 62 62 64.4 66.2 66.7 67.3 67.5 68.9 69.2 69.8 70.1 70.4 70.5 70.6 70.8 71 71.3 72.1 72.3 72.3 72.5...

Octave or Mat lab coding to be used 2.1. Use fzero() to determine the solution to the polynomial below. cos (VIP(x)l) -sin(x) = 0 (fzero)| y = x3 - 2 P(x) = polyfit(x, y,7) (8) 2.2. The reaction A +...

Write code to do the following(C++): (note: this question tests your mastery level of using cin. You have to use "cin>>" to separate characters and numbers.) As long as there are input from the...

Janel holds the following portfolio: \ table [ [ Stock , Investment ( $ ) ] ] , Rate of Return ( % ) Calculate the portfolio's rate of return.

The following table shows the costs of shipping of each plant to each storage unit, the capacity of each plant and the requirements of the storage unit. -Net model that represents the problem...

15. Now rank from 1 to 5 the areas that you think are most important to emphasize when communicating with others (1 is least important and 5 is most important to you). If you think it all depends on...

12. The form of creative action strategy, where would you say you have a strength, as a dreamer, as a realist or as a critic?

16. Now put the areas you have ranked in order of priority and reflect on which values they correspond to in your value hierarchy.