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Charra [1.4K]
3 years ago
7

A coach wants to know if soccer players who warm up before a game will score more points than those who don't warm up. He will b

reak the team up into two groups and make sure each player gets equal time on the field. He will then count how many points each player makes during the game. What statistic should he study?
The standard deviation of the number of points earned by each player
The standard deviation of the number of points earned by each group
The mean number of points earned by each player
The mean number of points earned by each group
Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
6 0
The correct answer is the last option.

Since the coach is studying the two different groups, the results will be more meaningful if the groups are compared to one another as opposed to the players. It would also make more sense to study the mean (or average) of the points scored, rather than the standard deviation (which is essentially a measure of how spread out a set of numbers are).
kotykmax [81]3 years ago
3 0

Answer:

The answer is The mean number of points earned by each group

Step-by-step explanation:

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Given f(x)=x-8 find f(1)+10
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Answer:

3

Step-by-step explanation:

replace all x variables with 1 and solve that equation ; f(x)=x-8 so.... f(x) = 1-8

there for f(1)=-7

now, add -7 and 10 for your answer:

f(1)+10= 3

6 0
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A line has a slope of 2/3 and a y-intercept of −5.
aniked [119]
The best and most correct answers among the choices provided by the question are:

<span>▢A. -2x+3y=-15
▢B. y=2/3x-5</span>

y = mx + b. where m is the slope<span> of the line and b is the y-</span>intercept<span> of the line, or the y-coordinate of the point at which the line crosses the y-axis. To write an equation in </span>slope-intercept form<span>, given a graph of that equation, pick two points on the line and use them to find the </span>slope<span>.</span>

I hope my answer has come to your help. God bless and have a nice day ahead!
6 0
3 years ago
Two angles are supplementary and one of them is 127° What is the size of<br> the other angle?
KengaRu [80]

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53 degree

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i just subtracted it (linear pair axiom)

6 0
3 years ago
If the cost of a competing factor of production, such as a machine that also could do the job, rises. This would result in a shi
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6 0
3 years ago
The volume of a cone with a height of 10 meters is 20 pi cubic meters. what is the diameter of the cone?
lesya [120]

Answer:

2√6 m

Step-by-step explanation:

The formula for the vol. of a cone is V = (1/3)(area of base)(height).

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We need to solve for (area of the base).

Multiplying both sides of this equation by (3/10) results in:

(3/10)(20 π m³) = (area of the base)

This simplifies to 6π m² = (area of the base)

We still must find the diameter of the base.  Let's find the radius of the base first:      The formula for the area of a circle is A = πr².  Here we have 6π m² = πr², which tells us that r² = 6 m².  Since d = 2r, and r = d/2, r² = d²/4.     Then the equation 6 m² = r²  becomes:

6 m² = d²/4.

Solve this for d.   Multiplying both sides by 4, we get:

24 m² = d²2, and d = √(24 m²) = 2√6 m  

The cone diameter is 2√6 m.

8 0
3 years ago
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