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devlian [24]
4 years ago
11

Dr. Tucker and his research team are interested in how aggression changes as we age. The team will recruit 100 3-year-old childr

en and assess their levels of aggression every three years until the participants turn 21. This is an example of cross-sectional research. True or false?
Mathematics
1 answer:
Rzqust [24]4 years ago
7 0

Answer:

False

Step-by-step explanation:

A cross sectional research examines changes between different population in a specific period of time. In this case the investigation of Dr. Tucker, is a longitudinal research. This research analyses changes in the same population in different periods of time which can provide data of changes of behavior of children over the time.

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Which of the following statements is likely to be true?
Nostrana [21]

Answer:

c. The interquartile range offers a measure of income inequality among California residents.

Step-by-step explanation:

The range is the midspread which measures statistical dispersion. This is also known as H-spread which is equal to the difference between 75th percentile and 25th percentile. In the given scenario the interquartile range offers measure of income inequality among California residents.

5 0
3 years ago
what is the next numeral in base 5 after 124 base 5. Also, what is the next numeral sequence after base 5 1344?
AVprozaik [17]

Just as in base 10, when you get to the highest single digit and add 1, you carry into the next higher place value. If your number were 129 in base 10, the next number in sequence is 130. If your number were 1399, the next number in sequence would be 1400.

124_5+1=130_5\\\\1344_5+1=1400_5

8 0
4 years ago
What is the slope of the line that contains the points (4,-1) and (-1,4)?
fiasKO [112]
If you follow the slope formula your answer should be -1
proof:
slope formula: Y2-Y1/X2-X1=Slope (M)
4,-1 will be our x1,y1 and -1,4 will be our x2,y2
plug in numbers into formula: 4-(-1)/ -1-4
simplify you get 5/-5
simplify again and your answer is -1!!!
If its wrong im sorry
8 0
3 years ago
Read 2 more answers
Sam is filling up his pool. The water hose filled the 423 gallon pool in 47 minutes. At what rate did the hose fill the pool in
sesenic [268]

Answer:

9 gallons/minute

Step-by-step explanation:

Since you are trying to find gallons/min, there are two ways you can go about this. Either find a common factor between the 2 number, or you can simply to divide 423 by 47. Thankfully in this situation, you can find the answer easily either way because 47 is a factor of 423.

Factor out 47:

423 gallons/47 minutes

47*9 gallons/47*1 minutes

Simplify:

9 gallons/minute

7 0
3 years ago
1.(02.01 LC)
seraphim [82]

Answer:

x = 3

Step-by-step explanation:

8x - 12 = 4x

<em>subtract 4 from each side</em>

4x - 12 = 0

<em>add 12 to each side</em>

4x = 12

<em>divide each side by 4</em>

x = 3

6 0
3 years ago
Read 2 more answers
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