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Blizzard [7]
4 years ago
14

Below are the data collected from two random samples of 500 American students on the number of hours they spend in school per da

y (rounded to the nearest hour): Number of hours in school per day 4 5 6 7 8 Sample A: Number of students 70 100 125 135 70 Sample B: Number of students 80 90 120 125 85 Meg concludes that students spend a mean of 7 hours in school each day. Tara thinks the mean is 6 hours. Who is correct—Meg or Tara? EXPLAIN YOUR ANSWER IN TWO OR THREE SENTENCES. Make sure to use facts to support your answer.
Mathematics
1 answer:
nexus9112 [7]4 years ago
7 0

Answer:

To find the mean you must add up all the numbers you have together and then divide the buy the amount of numbers you added. When you add these numbers up you get 30, and we have 5 numbers here, when we divide 30 by 5 we get 6. So, Tara is correct in saying that the mean is 6.

Step-by-step explanation:

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Helene spends 22% of her budget on transportation expenses. Enter this percent as a decimal and as a fraction in simplest form.
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22%=0.22 as a decimal, and 0.22 is written as 11/50
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4 years ago
Read 2 more answers
REDUCE THIS FRACTION 14/7(X+2)<br> WILL GIVE THANKS IF CORRECT
zheka24 [161]

2x + 4

Step-by-step explanation:

14/7(x+2)

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SO;

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Expand the brackets;

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6 0
3 years ago
Someone help, I suck at math
attashe74 [19]

option A.55°

Answer:

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<x+<y=<z

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4n-18+n+8=133-6n

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<u>exterior</u><u> </u><u>angle</u><u> </u><u>=</u><u>1</u><u>3</u><u>3</u><u>-</u><u>6</u><u>*</u><u>1</u><u>3</u><u>=</u><u>5</u><u>5</u><u>°</u>

<u>option</u><u> </u><u>A</u><u>.</u><u>5</u><u>5</u><u>°</u>

5 0
3 years ago
Are the rational numbers closed under addition?
Mumz [18]

Answer:

Integers: This set is closed only under addition, subtraction, and multiplication. Rational Numbers: This set is closed under addition, subtraction, multiplication, and division (with the exception of division by 0). Irrational Numbers: This set is closed for none of the operations (e.g., = 2, a rational number).

Step-by-step explanation:

7 0
4 years ago
Round to the nearest hundredth 5/8
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To round 0.625 to the nearest hundredth, we go to the second decimal place, which is 5, so we round up to 0.63.

3 0
3 years ago
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