Ms. Johnson uses a statistics program to analyze all the data collected by her students during a lab experiment about accelerati
1 answer:
Answer: d. 6.3
Step-by-step explanation:
Given : Ms. Johnson uses a statistics program to analyze all the data collected by her students during a lab experiment about acceleration due to gravity.
The program reports a mean and a standard deviation
We know that the variance is the square of the standard deviation.
So , the variance of the data will be :-
Hence, the variance of the data =6.3
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Answer:
Step-by-step explanation:
Given:
Required
Equivalent expression without fraction
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The denominators are 2 and 3
So, 6 is the least common multiple.
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<em>Hence, an equivalent expression.</em>
Answer:
25 pounds
Step-by-step explanation:
Let us assume that initially, 1 pound of whole chicken costs x.
So, initially 20 pounds of whole chicken costs 20x.
Now, the price is reduced by 20%.
That means that 1 pound of whole chicken now costs
Therefore, with a 0.8x amount of money, we can now purchase 1 pound of the whole chicken.
Hence, with a 20x amount of money, we can now purchase pounds of the whole chicken.