1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Akimi4 [234]
4 years ago
10

The length of time needed to complete a certain test is normally distributed with mean 46 minutes and standard deviation 6 minut

es. Find the probability that it will take less than 37 minutes to complete the test.
Mathematics
1 answer:
madam [21]4 years ago
3 0

Answer:

0.0668 or 6.68%

Step-by-step explanation:

Mean time (μ)= 46 minutes

Standard deviation (σ) = 6 minutes

The z-score for any given time X is determined by:

z=\frac{X-\mu}{\sigma}

For X = 37:

z=\frac{37-46}{6}\\ z=-1.5

A z-score of -1.5 corresponds to the 6.68th percentile of a normal distribution. The probability that it will take less than 37 minutes to complete the test is

P(X\leq 37) = 0.0668=6.68\%

The probability is 0.0668 or 6.68%

You might be interested in
Roger has 120 peanuts. He saves 48 for himself. He divides the rest equally among 8 friends. He wants to find how many peanuts e
Akimi4 [234]

Answer:

A and E  MARK BRAINLIEST!

Step-by-step explanation:

Well lets look into this question carefully ,

You should first subtract 120- 48= 72

Then 72/ 8 = 9 so we can check all that apply equations we used

A and E

3 0
3 years ago
A local pizza shop has a membership program for frequent buyers. The membership costs $25 per month and members get a discounted
AlladinOne [14]

Answer:

Step-by-step explanationcvm

8 0
3 years ago
Read 2 more answers
Is this correct???????
Igoryamba

Yes the answer A is the correct inequality. Lmk if you want more detail.

4 0
3 years ago
Determine whether the graph represents a linear or nonlinear function.
IgorLugansk [536]

The graph represents a linear function, because the graph is a line.

Linear basically means straight line. If you look at the line, it always goes left once and up once and this is always the same. This means the graph follows the equation of y = mx + c and so is linear. In this case, the equation is y = -x + 1

5 0
3 years ago
Read 2 more answers
Determine the place value of the digit 5 in the following whole number 1,576
nikklg [1K]
It is in the hundreds place. The number would be said as one thousand five hundred seventy six
3 0
3 years ago
Other questions:
  • A shelf takes 3 1 2 ft. of lumber. How many shelves can be made from 24 1 2 feet? A) 6 B) 7 C) 8 D) 9
    11·2 answers
  • HELP PLEASE HURRY
    11·2 answers
  • The product of 4 and a number minus 6 is 22
    14·2 answers
  • Jessica rode 9 miles father than Roger rode.Let r represent the.number of mile Roger rode.Write an expression for the number of
    7·2 answers
  • PLZZZ HELP ASAP completly clueless
    8·1 answer
  • PLEASE HELP WITH MARK BRAINIEST
    6·1 answer
  • Identify one solution for the graphed inequality y>1/2 x-3
    13·1 answer
  • Please answer will give branliest
    11·2 answers
  • Help anyone can help me do this question,I will mark brainlest.​
    15·1 answer
  • In -10x + y - 5; -10x and y​ are what?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!