Answer:
<h2><u>Solution</u><u> </u><u>:</u><u>-</u></h2>
Mean = 75 + 68 + 75 + 92 + 105/5
Mean = 415/5
Mean = 83
None of option is correct
A researcher analyzed the results of her data and calculated the standard deviation of scores at 3.5. what is the variance?
Solution: We are given the standard deviation of scores = 3.5
We know that the variance is the square of the standard deviation.
Therefore, the variance is:
Therefore, the variance of the scores is 12.25
<h3>
Answer: 1.8x - 4</h3>
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Explanation:
Subtract the two expressions
Tomas - Angie = (3x) - (1.2x+4) = 3x - 1.2x-4 = 1.8x-4
This represents how many more miles Tomas jogged compared to Angie.
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A more concrete example would be to say hypothetically
Tomas = 10 miles
Angie = 4 miles
So Tomas - Angie = 10-4 = 6 means he jogged 6 more miles than Angie.
That's why we subtracted. The order of subtraction matters. Saying 10-4 is different from 4-10.
44 molars she recieved is the range of mummy’s revived
Answer:
The current divorce rate is about 7% based on the survey.
Step-by-step explanation:
The divorces occur when two person fails to accept each other as a life partner. In the country the divorce rate is about 7% of which mostly couples are at the age of 20 - 25. The people of age 30 plus are less likely to get divorced as they have matured mind sets which accepts each other differences and tries to adjust the situation.
