« previous next »

Author Question: If we consider the simple random sampling process as an experiment, the sample mean is _____. a. ... (Read 159 times)

ec501234

  • Hero Member
  • *****
  • Posts: 573
on: Jun 24, 2018
If we consider the simple random sampling process as an experiment, the sample mean is _____.
 a. always zero
  b. always smaller than the population mean
  c. a random variable
  d. exactly equal to the population mean

Question 2

Fifty-five percent of the applications received for a credit card are accepted. Among the next 12 applications,
 a. what is the probability that all will be rejected?
  b. what is the probability that all will be accepted?
  c. what is the probability that exactly 4 will be accepted?
  d. what is the probability that fewer than 3 will be accepted?
  e. Determine the expected number and the variance of the accepted applications.


upturnedfurball

  • Sr. Member
  • ****
  • Posts: 334
Reply #1 on: Jun 24, 2018
Answer to Question 1

c

Answer to Question 2

a. .0001
b. .0008
c. .0762
d. .0079
e. 6.60, 2.9700


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

The process of mitosis in an animal cell. The process of mitosis in an animal cell.
A simple motif, the β-α-β loop A simple motif, the β-α-β loop
Sample Program for Changing Daily Caloric Intake Sample Program for Changing Daily Caloric Intake
Stages of the Infection Process Stages of the Infection Process
Hierarchical clusters in a microarray experiment using RNA samples from Saccharomyces cerevisiae Hierarchical clusters in a microarray experiment using RNA samples from Saccharomyces cerevisiae
Simple and Compound Leaves Simple and Compound Leaves
Video: Studying the Left and Right Brain Independently

For a complete list of videos, visit our video library