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Degger [83]
2 years ago
15

Which statement about the data is true

Mathematics
1 answer:
Alina [70]2 years ago
7 0

Answer:

D. A value of 0.9 is more than 2 standard deviations from the mean.

Step-by-step explanation:

A is wrong, because the standard deviation is +/-0.15 (the measure up or down from the mean)

B is wrong, because the mean is exactly 0.5

C is wrong, because 1 standard deviation up from the mean is 0.65, and 0.7 is outside of that.

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Alexus [3.1K]

Answer:

i need points

7 0
3 years ago
A spinner is divided into 5 equal sections numbered 1 to 5. The theoretical probability of the spinner stopping on 3 is 20%. Whi
Natali5045456 [20]

.20 * 10000 =2000

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6 0
3 years ago
A pre-algebra book is 8 1 half inches by 9 1 fourth inches. Determine the perimeter of the textbook.
Arisa [49]

Answer:

Rectangular book--

two 8 1/2 sides

two 9 1/4 sides

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9 1/4*2=18 1/2

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-this is not mine btw creds to sunflowerem :))

8 0
3 years ago
25 students are learning how to make balloon animals. There are 194 balloons to be shared equally among the students. How many b
alexdok [17]
25 students
194 balloons

194/25 = 7.76
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If each student needs 8 balloons
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200 - 194 = 6 ballons needed (Answer to part 2 of this question)

We also could have found the answer to part 2 by saying that we had 19 balloons left over when the students each were given 7 balloons
Each student needs another 1 balloon = 25 balloons, 
We have 19 left over
25 - 19 = 6 balloons need to be purchased (we got the same answer both ways so it is very likely we have the correct answer)
6 0
3 years ago
Apply root test to the series.
Angelina_Jolie [31]
\displaystyle\lim_{n\to\infty}\sqrt[n]{\left|\left(\frac{5n+15}{2n-1}\right)^n\right|}=\lim_{n\to\infty}\frac{5n+15}{2n-1}=\dfrac52

Since this limit exceeds 1, the series diverges.
8 0
3 years ago
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