Answer:
Step-by-step explanation:
To compare different scores with different means and std deviation, we convert each score into equivalent Z score.
Then comparisons would be easier.
Z = is the conversion factor
a) a score of 38 on a test with a mean of 31 and a standard deviation of 5.8
Z score =
b) a score of 1124 on a test with a mean of 1080 and a standard deviation of 67.7
Z score = 0.65
c) a score of 4709 on a test with a mean of 3960 and a standard deviation of 557.1
Z score = 1.34
Hence we get highest relative score is
a score of 4709 on a test with a mean of 3960 and a standard deviation of 557.1
Answer:
<em><u>C=139.80</u></em>
Step-by-step explanation:
C=2πr
=2π(22.25)
=139.80
<em>C=</em><em>1</em><em>3</em><em>9</em><em>.</em><em>8</em><em>0</em>
Answer:
The answer is option:
C. 10% of her customers ordered an appetizer and dessert.