Question: Total costs (Y) is a normally distributed random variable with a mean of 25and standard deviation of 4. Find the probability that costs are between

Total costs (Y) is a normally distributed random variable with a mean of 25and standard deviation of 4. Find the probability that costs are between 20and 25.

0.8944

0.1056

0.3944

0.5

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!

Total costs (Y) is a normally distributed random variable with a mean of 25and known standard deviation of 4.Find the probability that costs are between 21and 25. A.0.8944 B.0.3944 C.None are...

Mechanical Engineering Department ME 406 Manufacturing and Design First Semester 2017 (Term-171) HOMEWORK # 2 (Engineering Statistics) Assigned by: Dr. Anwar K. Sheikh/Dr Numan Abu Dheir Assigned on...

For a normally distributed random variable X with mean 28.9 and standard deviation 2.5, find the value of x such that the probability of one draw from the distribution will be 91.31%, i.e. P(X s x) =...

Math 10 Exam 2 (PLS SHOW WORK and ANSWER ALL THE QUESTIONS ---- NO EXCEPTION ) ( NOTE: your answer should be among the multiple choice questions/ answer if it's it means your is wrong so pls do your...

Foster's Fancy Cakes are sold in packets of six. The mass of each cake is a normally distributed random variable having mean 25 g and standard deviation 0.4 g. The mass of the packaging is a normally...

I need help solving these problems. Please help me by answering and showing explanations. Question 9 1 pts The time that it takes a randomly selected rat of a certain subspecies to find its way...

A lottery ticket has a grand prize of $28 million. The probability of winning the grand prize is .000000023. Determine the expected value of the lottery ticket. (Round your answer to 3 decimal...

Please help me with the following questions. Thank you. Southern New Hampshire Uni x | @ 6-3 Homework: Chapter 7 (Se x Question 3 - 6-3 Homework: (X Course Hero X G take a screen shot - Google S X +...

I am having a hard time with these ones. Joan's finishing time for the Bolder Boulder 10K race was 1.81 standard deviations faster than the women's average for her age group. There were 410 women who...

Recently, stanbul is facing a very significant water scarcity due to drought. Therefore, The Ministry of Ministry of Energy and Natural Resources of Republic of Turkey decided to build a dam to meet...

Consider the 20 DVD satisfaction ratings given on page 121. Construct a normal probability plot for these data and interpret the plot

By maintaining their current growth rates, which country will double its 2010 standard of living first? Chinas real GDP per person was 9,280 yuan in 2009 and 10,110 yuan in 2010. Indias real GDP per...

2 Which of these elements have you met before in your study of science? For each one, describe how you came to know about it.

Which of the following statements hold true for safety stock? The greater the risk of running out of stock, the larger the safety stock needed. The lower the opportunity cost of the funds invested in...

7. How can the models we use have a detrimental effect on others?

2. In this chapter, the reader should reflect on the following concepts: Systemic structuring, the displaced error, the communicable part of knowl-edge, tacit knowledge, hidden knowledge, analogy,...

2. List five points that are crucial to pay attention to if you want to positively influence someone from a foreign culture.