Answer:
Step-by-step explanation
cross-section is 10 inches by 16 inches
area = 10*16 = 160 square inches
Okay so the mean is 3, standard deviation is 2.16 and the variance is 4.66.
Answer: 
Step-by-step explanation:
multiply these -3/7 times by 3/8: Answer is -9/56
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The answer would be
B) 1
hope this helps!