Author Question: A sample statistic, such as x, that estimates the value of the corresponding population parameter is ... (Read 122 times)

erika

  • Hero Member
  • *****
  • Posts: 522
A sample statistic, such as x, that estimates the value of the corresponding population parameter is known as a _____.
 a. point estimator
  b. parameter
  c. population parameter
  d. parameter and a population parameter

Question 2

The probability function for the number of insurance policies John will sell to a customer is given by f(x) = .5  (x/6) for x = 0, 1, or 2
 a. Is this a valid probability function? Explain your answer.
  b. What is the probability that John will sell exactly 2 policies to a customer?
  c. What is the probability that John will sell at least 2 policies to a customer?
  d. What is the expected number of policies John will sell?
  e. What is the variance of the number of policies John will sell?



zoeyesther

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

a

Answer to Question 2

a. yes f(x)  0 and f(x) = 1
b. .167
c. .167
d. .667
e. .556



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

For a complete list of videos, visit our video library