Reference no: EM131062650
The Normal Distribution-
For all problems be sure to use the following 3 steps:
(i) Sketch a bell curve and shade the area corresponding to the probability you want
(ii) Find the appropriate z-score(s)
(iii) Determine the appropriate probability
1. The number of gallons of Gatorade consumed by a football team during a game follows a normal distribution with mean 20. The standard deviation is 3. If a game is selected at random, find the probability that the number of gallons consumed will be:
(a) Greater than 18 gallons.
(b) Between 22 and 25 gallons.
(c) Less than 16 gallons.
2. The average diastolic blood pressure of a certain age group of people is 85 mmHg, and follows a normal distribution. The standard deviation is 6. If an individual is selected at random, find the probability that the individual's pressure will be:
(a) Greater than 90
(b) Between 90 and 95.
(c) Between 82 and 90.
3. An automobile dealer finds that the average price of a used car is $9,000. He decides to sell cars that appeal to the middle 70% of the market in terms of price. Find the minimum and maximum prices of the cars the dealer will sell. The standard deviation is $1,300 and the distribution of prices is normal.
4. The average weight of a group of young adults is 160 pounds. The standard deviation is 10. If a sample of 49 is taken from this group, find the probability that the sample mean for the 49 will be less than 155 pounds.
|
Concepts of class-poverty-ethnicity
: Analyse the statement, ' Mental illness is a social problem' . To examine this question draw on one or two of the concepts of class, poverty, ethnicity, gender or race.
|
|
What do think should be criteria for labeling product green
: Because "being green" has become so popular, some organizations reference their green initiatives in their marketing materials to give the impression that their policies or products are environmentally friendly when, really, they are simply follow..
|
|
Identify a specific international company
: Evaluate these issues and determine how they affect our business - Identify and analyze three causes for its globalization
|
|
Describe the social conditions
: Describe the social conditions (eg. institutions, social values, cultural practices, beliefs, attitudes, conflicts etc.) that interact to produce vulnerable groups and discuss strategies that can be implemented by Nation States to assist these vul..
|
|
Find the minimum and maximum prices of the cars
: An automobile dealer finds that the average price of a used car is $9,000. He decides to sell cars that appeal to the middle 70% of the market in terms of price. Find the minimum and maximum prices of the cars the dealer will sell
|
|
Differential effects of a body image exposure session
: Read the article "Differential Effects of a Body Image Exposure Session on Smoking Urge Between Physically Active and Sedentary Female Smokers,"and identify the research questions and/or hypotheses as they are stated.
|
|
Discuss and set targets for your improvements
: Following from Assessment 1, you are to implement at least I of your recommendations made in response to your environmental sustainabillty review
|
|
Find the mean and standard deviation of the distribution
: At a certain store the number of arrivals per minute during the day has the following distribution: Find the mean and standard deviation of the distribution
|
|
Determine the allowable tensile force tallow in the cable
: Determine the allowable tensile force Tallow in the cable if the allowable compressive stress in the aluminum pole is 90 MPa.
|