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Lelechka [254]
3 years ago
5

A researcher wanted to determine whether eating sugary cereal for breakfast increased the aggression of second graders during th

eir morning play period. After feeding a group of 20 students sugary cereal for breakfast she observed that, on average, the students committed 4.5 aggressive behaviors during their morning play period. In this example, the sample is:________
Mathematics
1 answer:
Artist 52 [7]3 years ago
5 0

Answer:

20 students

Step-by-step explanation:

Sample is basically a selected subset of a population. A researcher is investigating the effect of sugary cereal on the aggression of second graders during morning play period. For this purpose, a researcher selected 20 student and feed them a sugary cereal and then observe their behaviors. Here, 20 student are selected from the all second grader students. So, the sample in the conducted study are 20 students.

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What is 3/4 to the power of 2
natima [27]

Answer:

9/16

Step-by-step explanation:

5 0
3 years ago
A stone pyramid in egypt has a square base that measures 157 m on each side. the height is 95 m. what is the volume of the pyram
fomenos
Volume of square pyramid = (base area) * h/3
= (157 * 157) * 95/3
=24,649 * 95/3
=780,551.67 m3
Btw [*] means multiply

☺
3 0
3 years ago
In what time will a sum of money double itself at 10%?<br>ease answer this please I need helppp....​
nirvana33 [79]

Answer:

8 generations

Step-by-step explanation:

Start with $1 and add 10% per generation until you reach $2. (Multiply by 1.1).

$1

$1.10

$1.21

$1.33

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5 0
2 years ago
What is the value of the radical expression shown below?
avanturin [10]

Answer:

5/7

Step-by-step explanation:

Simplify the radical by breaking the radical up into a product of known factors.

7 0
3 years ago
Read 2 more answers
Let f(x)= [x/3] (where f(x) is the ceiling function). We learned that the floor and the ceiling functions are NOT invertible, bu
meriva

(a) We have ⌊<em>x</em>⌋ = 5 if 5 ≤ <em>x</em> < 6, and similarly ⌊<em>x</em>/3⌋ = 5 if

5 ≤ <em>x</em>/3 < 6   ==>   15 ≤ <em>x</em> < 18

(b) ⌊<em>x</em>⌋ = -2 if -2 ≤ <em>x</em> < -1, so ⌊<em>x</em>/3⌋ = -2 if

-2 ≤ <em>x</em>/3 < -1   ==>   -6 ≤ <em>x</em> < -3

In general, ⌊<em>x</em>⌋ = <em>n</em> if <em>n</em> ≤ <em>x</em> < <em>n</em> + 1, where <em>n</em> is any integer.

I do not understand what is being asked in (c) and (d), so you'll have to clarify...

8 0
2 years ago
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