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Brums [2.3K]
3 years ago
7

NEED HELP AND FAST

Mathematics
1 answer:
11111nata11111 [884]3 years ago
8 0

Answer:

it's 20 I hope it will help you please follow me

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The brain volumes ​(cm cubed​) of 20 brains have a mean of 1105.1 cm cubed and a standard deviation of 123.5 cm cubed. Use the g
kramer

Answer:

1332.1 \:cm^3 is neither significantly low nor significantly high.

Step-by-step explanation:

From the information given, we know that:

The mean is \bar{x}=1105.1 \:cm^{3} and the standard deviation is \sigma=123.5 \:cm^{3}.

The range rule of thumb says that:

minimum \:usual \:value=\bar{x}-2\sigma\\\\maximum \:usual \:value=\bar{x}+2\sigma

Applying these definitions, we get that

minimum \:usual \:value=1105.1-2(123.5)=858.1 \:cm^3\\\\maximum \:usual \:value=1105.1+2(123.5)=1352.1 \:cm^3

We note that 1332.1 \:cm^3 is between 858.1 \:cm^3 and 1352.1 \:cm^3, which indicates  1332.1 \:cm^3 is neither significantly low nor significantly high.

6 0
4 years ago
Justine is following a recipe that calls for 1 cup lemon juice for every 2 cups of sugar. If she uses 3 cups of lemon juice, how
velikii [3]

Answer:

6 cups

Step-by-step explanation:

We can use ratios to solve

1 cup lemon       3 cups lemon

------------------- = ---------------

2 cups sugar        x cups sugar

Using cross products

1 * x = 2 * 3

x = 6

8 0
4 years ago
Read 2 more answers
What are two answers for 2 / 3 - 5 / 12
nordsb [41]

Answer:

0.25

Step-by-step explanation:

the answer is 1/4 or 0.25 in decimal form

6 0
4 years ago
The depth of a lake is 15.8 meters. By how many meters does the measured depth differ from the actual depth?
zaharov [31]

Answer:

Sorry Bro I can't understand

3 0
3 years ago
Compare the subtraction problems (6 8 − 5 8 = 1 8 ) and (6 9 − 7 9 = −1 9 ). Why is the answer to the first problem positive and
kherson [118]

Answer:

In the second problem, the first fraction is less than the second fraction.

If you subtract a lesser number from a greater number, the answer is positive.

If you subtract a greater number from a lesser number, the answer is negative.

Step-by-step explanation:

Hope this helps

Sorry if it was late

7 0
3 years ago
Read 2 more answers
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