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Colt1911 [192]
3 years ago
14

A company makes a bracelet that is designed to repel mosquitoes so people don't have to wear bug spray. Researchers at the compa

ny are designing an experiment where volunteers will be assigned either the bracelet or bug spray to use at their homes. The researchers want to use a randomized block design. How should the researchers form the blocks
Mathematics
1 answer:
Yuri [45]3 years ago
5 0

Answer: volunteer within each block should live in similar environments to each other when it comes to mosquitos

Step-by-step explanation:

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Assume the random variable X is normally distributed with mean μ = 50 and standard deviation σ = 7. Compute the probability
tatyana61 [14]

Answer:

Probability-Between    .8574 = 85.74%

Step-by-step explanation:

Z1=-2.14 Z2=1.14

*x-1 35

*x-2  58

*µ 50

*σ 7

8 0
2 years ago
1<br> What is the volume of a cube of side 1000 mm?
aniked [119]

Answer:

1000000000 ml^3 or 1000000L^3

Step-by-step explanation:

First you have to know that the volume of a cube is found by A^3

A is 1 side of the cube.

Now plug in the number 1000.

1000^3=1000000000 ml^3

To simplify you could turn it into liters. To do this divide by 1000.

This would result in 1000000L^3

3 0
3 years ago
The square root of -12 × the square root of -9 (THIS IS AN ALGEBRA 2 QUESTION)
nlexa [21]

Answer:

\sqrt{-12} = 2\sqrt{3} i\\\sqrt{-9}= 3i\\3i * 2\sqrt{3}i = -6\sqrt{3

Step-by-step explanation:

5 0
3 years ago
What's the answer for<br> −4y−4+(−3)
galben [10]

Answer:

4y--7 i think

Step-by-step explanation:

8 0
2 years ago
There are 1,200 students at Roosevelt middle school. There are 700 boys at the school. What percentage of the students at Roosev
Stella [2.4K]
Out of 1,200 students, 700 are boys. Therefore, the fraction would be \frac{700}{1200}.

To convert this into a percentage, divide 700 by 1,200.

\frac{700}{1200} = 0.583333 (or just 0.583 if you round)

Multiply 0.583 by 100 to get a percentage.

0.583 · 100 = 58.3

So, the percent of boys at the school is 58.3%.
4 0
3 years ago
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