This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A videotape store has an average weekly gross of 1,158 with a standard deviation of 120 . Let x be ... (Read 126 times)

lidoalex

  • Hero Member
  • *****
  • Posts: 538
on: Jun 24, 2018
A videotape store has an average weekly gross of 1,158 with a standard deviation of 120 . Let x be the store's gross during a randomly selected week. If this is a normally distributed random variable, then the number of standard deviations from 1,158 to 1,360 is:
 a. 0.4535.
  b. 0.0465.
  c. 20.98.
  d. 1.683.
  e. none of these.

Question 2

Which of the following is not a characteristic for a normal distribution?
 a. It is symmetrical distribution
  b. The mean is always zero
  c. The mean, median, and mode are all equal
  d. It is a bell-shaped distribution
  e. The area under the curve always equals 1.0


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

polinasid

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jun 24, 2018
Answer to Question 1

D

Answer to Question 2

B


lidoalex

  • Member
  • Posts: 538
Reply 2 on: Jun 24, 2018
Gracias!

zacnyjessica

  • Member
  • Posts: 345
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

By definition, when a medication is administered intravenously, its bioavailability is 100%.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Menstrual cycle summary based on a 28-day (average) menstrual cycle. Menstrual cycle summary based on a 28-day (average) menstrual cycle.
The standard protocol of a metagenomics experiment. The standard protocol of a metagenomics experiment.
ROM exercises on a patient’s wrist: ulnar deviation. ROM exercises on a patient’s wrist: ulnar deviation.
a) Thumb pressure with radial deviation b) Alternating stroke using ulnar deviation a) Thumb pressure with radial deviation b) Alternating stroke using ulnar deviation
La Niña events store energy La Niña events store energy
Store vitamin B–rich whole-wheat flour in an airtight container in your refrigerator or freezer Store vitamin B–rich whole-wheat flour in an airtight container in your refrigerator or freezer
Video: Effect of the environment on coat color in the Himalayan rabbit Animation

For a complete list of videos, visit our video library