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Tamiku [17]
3 years ago
5

Twenty girls​ (ages 9-10) competed in the​ 50-meter freestyle event at a local swim meet. The mean time was 43.70 seconds with a

standard deviation of 8.07 seconds. The median time was 40.15 with an IQR of 4.98 seconds. Without looking at a graphical​ display, what shape would you expect the distribution of swim times to​ have?
Mathematics
1 answer:
iragen [17]3 years ago
3 0

Answer:

Right or positively skewed

Step-by-step explanation:

From the median and the interquartile range we can find the first and third quartile values Q3=40.15+(4.98/2)=42.64 and Q1=37.66.

Now we have enough evidence to conclude that is Right or positively skewed

1. The mean is above the median

2. The mean is 43.70, which is above the third quartile (42.64), meaning that after the mean there's less than 30% of the data.

The evidence suggests that most of the data is concentrated at the bottom of the distribution making it right or positively skewed.

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Use the following set of data: {27, 35, 32, 25, 36}<br> Find the mean.<br><br> Please help me
Alexus [3.1K]
I think 32! If it’s wrong I’m sorry lols
4 0
3 years ago
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For what value(s) of x does y = 0 for the function tan(x)?
mina [271]
So We Know That tan(x) Equals

\tan(x)  =  \frac{ \sin(x) }{ \cos(x) }
We Can Use Logic, We Know That Anything That Makes The Denominator 0, Will Not Work, So We Need To Know What Makes Sin(x) equal to 0 and Cos(x) equal to 1 or -1 BUT NOT 0

\sin(0)  = 0 \:  \cos(0)  = 1 \\  \sin(180) = 0  \:  \cos(180) =  - 1   \\ \sin(360)  = 0 \:  \cos(360)  = 1 \\  \sin( - 180)  = 0 \:  \cos( - 180)   =  - 1 \\ \sin( - 360)  = 0 \:   \cos( - 360)  = 1
\cos(90)  = 0 \\  \cos( - 90)  = 0 \\  \cos(270)  = 0 \\  \cos( - 270)  = 0
We Didn't Want Cosine To equal Zero Because Then We Get

\tan(x)  =  \frac{ \sin(x) }{ \cos(x) }  \\  \tan(x)  =  \frac{ \sin(90) }{ \cos(90) }  \\  \tan(x)  =  \frac{1}{0}  \\  \tan(x) = indeterminate

THE ANSWER IS C : -360°,-180°,0°,180°,360°
8 0
3 years ago
In line 69, "perplex" most nearly means
lana [24]

The correct answer is option a) trouble

In line 69, "perplex" most nearly means trouble.

Despite the fact that the word "perplex" normally meant to leave someone feeling entirely perplexed, in this passage it suggests "trouble": Until there was nothing left to bother you, Mrs. Deverell, Angel had assumed all of the tasks.

Farmers assumed that these plates or the colony collapse disorder they were showing may be the source of this. Farmers believed that these common reasons were to blame.

There is the chance. These typical promises mites are said to be promises by farmers. Farmers believe that the chaos of colony collapse was caused by these shared goals.

That makes no sense since, as you may recall, we're talking about illnesses like fungus and might. The disturbed farmers also believe that colony collapse disorder is caused by these everyday problems. In any case, bacteria, fungi, and mites.

Learn more about "perplex"

brainly.com/question/17316948

#SPJ4

4 0
2 years ago
100 POINTS HELP
34kurt

Answer:

The first student would have none, The second student, four is none, 5 is none as well.

8 0
2 years ago
What is the surface area? 5 mm 4 mm 5 mm 6 mm 6 mm square millimeters​
mylen [45]

Answer:

6 x 4 = 24, 24 divided by 2 = 12(area of 1 triangle)

12 x 2(two triangles) = 24

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30 x 2(two rectangles) = 60

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Add all given AREAS:

24 + 60 + 60 = 144 mm2 is your answer.

8 0
3 years ago
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