Claire went into a movie theater and bought 9 bags of popcorn and 2 pretzels, costing a total of $80. Melanie went into the same
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Answer:
Step-by-step explanation:
The formula of a volume of a sphere:
R - radius
We have R = 3 ?. Substitute
If the radius is 30, then the volume is:
If 30 is the length of diameter, then the radius R = 30 : 2 = 15.
Therefore the volume:
Answer:
a)
D. 9.74
b)
B. 74
Step-by-step explanation:
Part a
We have the following dataset given:
69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83
We can begin calculating the sample mean with the following formula:
And replacing we got:
Now we can calculate the sample deviation with the following formula:
And after replace we got:
Part b
For this case we need to sort the value on increasing way:
[1] 61 62 63 64 65 66 67 69 69 70 71 74 74 75 76 77 77 82 82 83 87 88 90 91 93
And the median would be the value in the position 13 and we got: