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
nikklg [1K]
2 years ago
15

The average time an individual reads online national news reports is 49 minutes. Assume the standard deviation is 16 minutes and

that the times are normally distributed. What is the probability someone will spend no more than 30 minutes reading online national news reports
Mathematics
1 answer:
Olin [163]2 years ago
3 0

Answer:

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 49 minutes

Standard Deviation, σ = 16 minutes

We are given that the distribution of  time an individual reads is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(no more than 30 minutes)

P( x \leq 610) = P( z \leq \displaystyle\frac{30 - 49}{16}) = P(z \leq -1.1875)

Calculation the value from standard normal z table, we have,  

P(x \leq 30) = 0.118 = 11.8\%

0.118 is the probability someone will spend no more than 30 minutes reading online national news reports.

You might be interested in
Hey! I’m struggling and need help! Thank you!
Charra [1.4K]

Answer:

That would be obtuse

Step-by-step explanation:

Those are all more than 90 degrees!

4 0
2 years ago
Jared made 4 bird houses in 3 days. How many days will it take him to make 28 bird houses.
pogonyaev
4 times 7 = 28

3 times 7 = 21

It will take him 21 days to make 28 bird houses.
6 0
3 years ago
What is 522,000 rounded to the nearest tenth.
tiny-mole [99]
522,000. This is most likely a question meant to trick you.
3 0
2 years ago
A cereal box can hold 144 cubic inches of of cereal. Suppose the box is 8 inches long and
Korvikt [17]

Answer: \\ Volume \:  of \:  the \:  box:V = lwh \\ \Rightarrow h =  \frac{V}{lw}  =  \frac{144}{8 \times 1.5}  =  \frac{144}{12}  = 12 \\ \Rightarrow The  \: box's  \: height:12 \:  inches

5 0
2 years ago
On average, 240 customers arrive at a bank every morning (8AM - noon), but they do so randomly (i.e., not exactly every minute).
arlik [135]

Answer:

3.4 minutes

Step-by-step explanation:

Every morning there are expected 240 customers who arrive at bank for the customer service. There are on average 240 customers arriving to the bank every morning. There are total 5 bank tellers and they take average 3 minutes to help customer. The average time each bank teller spends on satisfying a customer will be calculated using the linear model,

Using wait time calculator:

Average service time / standard deviation

Ce = 3/1.5 = 2

The spent time on a customer is 3.4 minutes.

7 0
2 years ago
Other questions:
  • Which equation is represented by the table?
    9·2 answers
  • PLEASE HELP! Explain how you got the answer, will give brainliest!
    6·1 answer
  • Given the objective function C=3x−2y and constraints x≥0, y≥0, 2x+y≤10, 3x+2y≤18, identify the corner point at which the maximum
    10·1 answer
  • <img src="https://tex.z-dn.net/?f=3x%20%3D%203%20%7B%3F%7D%5E%7B2%7D%20" id="TexFormula1" title="3x = 3 {?}^{2} " alt="3x = 3 {?
    9·1 answer
  • Yoshi saved $5 each week for 23 weeks. What is the total amount of money he saved. Use an area model to solve
    13·1 answer
  • Help Please!!!!!!!!!!!!!
    15·2 answers
  • Order the numbers from least to greatest. 1=least and 4=greatest
    14·1 answer
  • Which of the following is equivalent to (5x^2)(4x^3)
    8·1 answer
  • I NEED HELP I HAVE 10 MINS LEFT
    9·1 answer
  • Line K has a slope of -5. Line J is perpendicular to line K. What is the slope of line K?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!