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
LenaWriter [7]
3 years ago
12

Data with 950 observations are drawn from a bell-shaped distribution with a mean of 78 and a standard deviation of 19. Approxima

tely how many observations are more than 116
Mathematics
1 answer:
AysviL [449]3 years ago
4 0

Answer:  there are 22 observations that are more than 116.

Step-by-step explanation:

Let x be the random variable.

Given: Sample size = 950

Mean = 78

Standard deviation = 19

The probability that the observations are more than 116 is given by :-

P(X>116)=P(\dfrac{X-mean}{standard \ deviation}>\dfrac{116-78}{19})\\\\=P(Z>2)\\\\=1-P(Z

Number of observations are more than 116 = 0.0228\times950

=21.66\approx22

Hence, there are 22 observations that are more than 116.

You might be interested in
Maggie’s brother is 3 years younger than twice her age. The sum of their ages is 18. How old is Maggie?
kykrilka [37]

Answer: Maggie is 7 years old.

7 . 2 = 14

14-3=11

11+7=18

Hope this helps!

6 0
3 years ago
Pls pls pls pls helppppp
Flura [38]

Answer:$5.95

Step-by-step explanation:

5 0
3 years ago
Find the product.<br><br> 1/2 - y (2y * 3 - 8)<br> a) -y 4 + 4y<br> b) y 4 + 4y<br> c) -2y 3 + 4
aivan3 [116]
1/2 - y (6y - 8)
1/2 -6y2 - 8y

the answer is A
5 0
3 years ago
Missy’s rotation maps point k (17,-12)to k (12,17) which describes the rotation?
Dennis_Churaev [7]

Answer:

This would be a 90 degree rotation in a counter clockwise fashion.

Step-by-step explanation:

You can tell this because in a 90 degree shift, the values switch terms. Also, one of the terms will change the sign.

4 0
3 years ago
Read 2 more answers
What's the greatest number for 5,3,1,4,7
Black_prince [1.1K]
75431
Hope it helps you
6 0
3 years ago
Read 2 more answers
Other questions:
  • What experimental of rolling a 2 or 3
    8·1 answer
  • A reflecting pool is shaped like a right triangle with one leg along the wall of a building. the hypotenuse is 9 feet longer tha
    10·1 answer
  • Which event was most influential in turning American public opinion against Germany?
    11·1 answer
  • One third of a birds eggs hatched. If 2 eggs hatched, how many eggs did the bird lay?
    13·2 answers
  • If x = 10, which lines are parallel? Check all that apply.
    5·1 answer
  • What is the sales tax on a painting priced at $280 if the sales tax rate is 7.1%?
    5·1 answer
  • What is the slope between these two points? (2,5) (8, 12)
    11·1 answer
  • Find the output, y, when the input, r, is 30.<br> y = 14 – 0.52
    7·1 answer
  • What is the solution of StartRoot 2 x 4 EndRoot = 16?.
    14·1 answer
  • Preston needs to write an equation in slope-
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!