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
alexira [117]
3 years ago
15

NEED HELP ASAP.....At the 2012 Summer Olympic Games in London, in the Men's Shot Put qualifying round, the distances ranged from

17.58 meters to 21.36 meters with a mean distance of 19.64 meters and a standard deviation equal to 0.92 meters. If the distribution were truly a normal distribution, what percent of the athletes would have had a distance greater than 20.56 meters, one standard deviation above the mean? There were 40 athletes in the competition. How many athletes does that represent?
OPTIONS:
-about 6 athletes
-about 14 athletes
-about 20 athletes
-about 26 athletes
-about 34 athletes
Mathematics
1 answer:
jeka57 [31]3 years ago
6 0

Answer:

About 6 athletes.

Step-by-step explanation:

We are concerned only with the percent of athletes that are above one standard deviation.

Between one standard deviation and two standard deviations, there is 13.6% of the athletes.

From 2 to 3, there is 2.1%. Above 3, there is 0.2%.

The sum of those percentages is 15.9% of 40 = 0.159 · 40 = 6.36 or about 6 athletes.

Hope this helps.

You might be interested in
Does anybody understand writing equations in slope intercept form?
aleksandr82 [10.1K]

slope intercept form

y=mx+b

where m is the slope and b is the y intercept

if we change from point slope form

y-y1 = m(x-x1)

we distribute

y-y1 = mx -x*x1

then add y1 to each side

y = mx -x*x1+y1


remember x and y are variables and should stay in the equation

m,x1,y1 are numbers from the problem

you may have to calculate the slope (m) from the formula

m = (y2-y1)/(x2-x1)  from two points on the line

4 0
3 years ago
Read 2 more answers
9a-4(2a+5).<br> I really need help with this question
slava [35]

First you had to expanded form.

-4(2a+5)=-8a-20

9a-8a-20

Finally you can also add by similar to elements.

9a-8a=a

a-20

Final answer: \boxed{=a-20}

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

8 0
3 years ago
2rods whose length are 21 cm &amp; 14cm are to be cut length equal
Allushta [10]
7cm each. reason: the rod of 21cm lenght will be cut into 3pieces of 7cm each, while that of 14cm will be cut into 2 pieces of 7cm each. Therefore, there 5 pieces of rods of 7cm each. Thanks.
6 0
3 years ago
Simplify the fraction 35/21 in simplest form​
aev [14]

Answer:

5/3

Step-by-step explanation:

35 and 21 could be divided by a factor of 7.

35 ÷ 7 = 5

21 ÷ 7 = 3

So,

35/21 = 5/3

7 0
3 years ago
Read 2 more answers
First to answer well get brainliest!..<br> Plz
marta [7]
<h2>Answer: It is on the origin or quadrant I</h2>
3 0
3 years ago
Other questions:
  • A square with sides of x + 2 and an equilateral triangle with sides of length 2x have equal perimeters.x =124
    10·1 answer
  • Probability:
    9·1 answer
  • If two students from the high school are chosen at random, one after the other, to represent the school at a leadership conferen
    5·2 answers
  • A box contains a collection of triangular and square tiles. There are 25 tiles in the box and 84 edges . How many square tiles a
    5·1 answer
  • Please help! I'm stuck:(
    10·1 answer
  • What is the measure of A 54°<br> D. 66°<br> B. 56°<br> E. 114°<br> C. 58°
    12·2 answers
  • Identify the arc length of TV◠ in terms of π.
    7·1 answer
  • Help mehhhhhhhhh, thanks
    8·2 answers
  • IM GIVING BRAINLIEST!
    12·1 answer
  • Can someone help me i dont know what to do here please Explain and answer
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!