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
Verizon [17]
3 years ago
11

According to the empirical rule, if the data form a "bell-shaped curve" (normal distribution), approximately what percent of the

observations will be contained within + /- 2 standard deviations from the arithmetic mean. (Select the correct answer from the choices below.)A. 99.7B. 95.0C. 75.0D. 68.3
Mathematics
1 answer:
Ann [662]3 years ago
3 0

Answer: B. 95.0

Step-by-step explanation:

In statistics , the famous empirical rule says that " if the data is normally distributed then 68% of the observations will be contained within \pm1 standard deviations from the arithmetic mean, 95% of the observations will be contained within \pm2 standard deviations from the arithmetic mean and 99.7% of the observations will be contained within \pm3 standard deviations from the arithmetic mean".

Hence, B is the correct answer.

You might be interested in
Blake ran three miles for his workout today. He ran the first mile in 7.2 minutes, the second mile in 7.35 minutes, and the thir
NeTakaya

Answer:

22.05 minutes

Step-by-step explanation:

7.2 + 7.35 + 7.5 = 22.05 minutes

6 0
2 years ago
Read 2 more answers
Over the first five years of owning her car, Gina drove about 12,100 miles the first year, 15,758 miles the second year, 12,200
grandymaker [24]
To find the mean, add up all of the miles and divide by the number of years.  12100 + 15758 + 12200 + 11800 + 12750 = 64608.   64608/5 = 12921.9.  The mean (the average) is 12,921.9 miles.

To find the median, put the numbers in order and find the middle number.  The middle number is 12200.  The median (middle number) is 12,200 miles

To find the mode, you would look for the number that is repeated the most.  In this data set, no number repeats, so there is no mode.  There is no mode for this data set.

The mean (average) would be the best measure of central tendency to predict how many miles Gina will drive in the sixth year.

I hope this helps! Can I have Brainliest, please? :)

4 0
2 years ago
Tập xác định của hám số y = cot (x- pi/6)
DENIUS [597]

Answer:

1+1=100

Step-by-step explanation:

  1. 100/28=<u>17m0</u>

<em><u>Halimbawa</u></em><em><u>:</u></em>

<h2><em>Qpe0183</em></h2><h3><u>Uahus</u></h3>
4 0
2 years ago
Simplify the rational expression.
Vadim26 [7]

Answer:

\frac{x-6}{x-9}

Step-by-step explanation:

Given

\frac{x^2-2x-24}{x^2-5x-36} ← factor the numerator and denominator

= \frac{(x-6)(x+4)}{(x-9)(x+4)} ← cancel (x + 4 ) on numerator/ denominator

= \frac{x-6}{x-9}

6 0
2 years ago
Round 14.5621 to the nearest hundredth.Do not use zeros.Please explain it would be helpful.
12345 [234]
14.56, use this for anything else you may need. https://www.thecalculator.co/math/Rounding-Calculator-345.html
7 0
3 years ago
Other questions:
  • Please someone help me, and explain. :)
    5·2 answers
  • PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
    12·2 answers
  • A sidewalk around a circular park covers a distance of 65 meters. A new sidewalk is being constructed across the park through it
    6·2 answers
  • Gio’s soccer team is having a car wash to raise money for new uniforms. C stands for how many cars are washed and D stands for h
    5·2 answers
  • T is a point inside parallelogram ABCD. The area of ΔTAB = 11, the area of ΔTBC = 4, and the area of ΔTCD = 6. Find the area of
    7·1 answer
  • Which statement about the temperatures −13.4°C and −13.2°C is true?
    6·1 answer
  • Someone help pleaseUpperbound​
    7·1 answer
  • Liz has two gardens and wants to build a fence around each. She wants to buy all the fencing at one time. The diagram below show
    12·1 answer
  • when spinning the spinner shown below , about how many times would you expect the spinner to land on red if you spin it 24 times
    6·1 answer
  • 2x + 3y = 0<br> X + 2y = -1<br> Is this one solution <br> No solution <br> Or infinite solution
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!