Average life expectancy of person living in africa

Assignment Help Basic Statistics
Reference no: EM1392306

A recent study found that the average life expectancy of a person living in Africa is 53 years with a standard deviation of 7.5 years. If a person in Africa is selected at random, what is the probability that the person will die before the age of 65?

a. 94.52%

b. 82.89%

c. 94.95%

d. 88.49%

Reference no: EM1392306

Questions Cloud

Normal distribution of sheet metal stamping machine : For the sheet-metal stamping machine in certain factory, the time between failures, X1 has a mean between the failures, of 56 hours and a variance of 16 hours.
Finding evidence for the boast of dealership : He reviews the last eight months at dealership B and finds the standard deviation of the eight monthly sales to be 22.95. Using the .01 significance level does the analyst find evidence that the boast of dealership A is correct?
Find number of nuclear chromosomes per cell : A somatic cell of a given plant species contains threebillion base pairs of nuclear DNA and 12 functional centromeres when observed at the conclusion of stage G2 of the cell cycle.
Explain speed-power to organize crime by globalization : Explain the speed, power, and ease brought to organized crime by globalization of markets and communication.
Average life expectancy of person living in africa : A recent study found that the average life expectancy of a person living in Africa is 53 years with a standard deviation of 7.5 years. If a person in Africa is selected at random
Value of the test statistic-car dealerships in area : There are two car dealerships in a particular region. The mean monthly sales at the two dealerships are about the same. Though, one of the dealerships (dealership A) is boasting to corporate headquarters that his dealership's monthly sales are mor..
Distinguish between acids and bases : Distinguish between acids and bases and relate each to the pH scale. What is a buffer and what makes buffers important to life?
What is the labor content total number of labor hours : How long would it take to complete 1,000 projects with each alternative? What is the labor content (total number of labor hours) for 1,000 projects for each alternative?
Determining two normal distributions : One normal curve has mean 23 and standard deviation 1, a second normal curve has mean 5 and standard deviation 10. The curve that is more dispersed, or spread out, is

Reviews

Write a Review

Basic Statistics Questions & Answers

  Sampling distribution of the difference

If two independent large samples are taken from two populations, the sampling distribution of the difference between the two sample means:

  Constructing histogram in excel

A large internet retailer, is studying the lead time (elapsed time between when an order is placed and when it is filled) for a sample of recent orders. The lead times are reported in days.

  Explaining normal distribution

Suppose that the average annual salary for the worker in United States is $39,000.00 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $7,000.00.

  Dress habits-probability research

At a board meeting of 20 businessmen, all of whom wear ties, what is the probability that:

  Writing linear regression equation

Write the linear regression equation to forecast father's education from mother's education?

  Determining population when confidence given

At 95% confidence, test to determine if more than 21% of the population will like the new soft drink.

  Computation of blood pressure from normal distribution

Assume we have set of blood pressure with a mean of 80 Diastolic, and a sample standard deviation of 10 points. If we assume a normal distribution of Diastolic blood pressures,

  Non parametric test-kruskal wallis test

Describe what you find then produce an ANOVA for the problem.

  Establish the comparison of coefficient of variation

Public transportation and the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.

  Ratio level of scaling

Which of the examples below represent the Ratio level of scaling?

  Finding of sample size for population mean

How many boxes must the processor sample to be 95 percent confident that the sample mean does not differ from the population mean by more than 0.2 pounds?

  Determining probability that spin is going to be red

If 16 out of 20 spins just came up black, determine the probability that next spin is going to be red?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd