« previous next »

Author Question: The time between customer arrivals at a furniture store has an approximate exponential distribution ... (Read 132 times)

BRWH

  • Hero Member
  • *****
  • Posts: 553
on: Jun 24, 2018
The time between customer arrivals at a furniture store has an approximate exponential distribution with mean  = 8.5 minutes. If a customer just arrived, find the probability that the next customer will not arrive for at least 20 minutes.
 
  A) 0.904911 B) 0.346230 C) 0.095089 D) 0.653770

Question 2

Use the standard normal distribution to find P(-2.50 < z < 1.50).
 
  A) .8822 B) .5496 C) .6167 D) .9270


alexisweber49

  • Sr. Member
  • ****
  • Posts: 311
Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

BRWH

  • Hero Member
  • *****
  • Posts: 553
Reply #2 on: Jun 24, 2018
Thank you


alexisweber49

  • Sr. Member
  • ****
  • Posts: 311
Reply #3 on: Jun 24, 2018
No problemo


« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Adenosine, Time of Day, and Hunger Adenosine, Time of Day, and Hunger
Sterilization Time Requirements Sterilization Time Requirements
The distribution of the sarcoplasmic reticulum and tubules around myofibrils of skeletal muscle. The distribution of the sarcoplasmic reticulum and tubules around myofibrils of skeletal muscle.
Cumulative Standard Normal Distribution Cumulative Standard Normal Distribution
The phenotypic distribution in a cross with two traits: seed color and seed shape. Plants in the F2 The phenotypic distribution in a cross with two traits: seed color and seed shape. Plants in the F2
The age-adjusted rate of melanoma, a deadly form of skin cancer, from 1973 to 2000. Over that time p The age-adjusted rate of melanoma, a deadly form of skin cancer, from 1973 to 2000. Over that time p
Video: Mendel's pea plant, Pisum sativum experimental

For a complete list of videos, visit our video library