Answer:
192
Step-by-step explanation:
divide the 80 yards by the 25 seconds it takes to run those yards (which gets you 3.2), and then multiply that number by the 60 seconds getting you 92 yards.
Answer: 40 cm²
Step-by-step explanation:
Surface Area will be= [2 x {(2x4)+(4x2)+(2x2)}] = 40 cm²
His friend's would weigh 23.67 grams.Altogether it would be 31.56 grams.
Answer:
(A) Mean = 84
(B) Variance = 118.714
(C) Standard deviation = 10.89
Step-by-step explanation:
Data provided:
number of observations, n = 15
sample of 15 costco customer satisfaction scores follow
X
95 11 121
90 6 36
83 -1 1
64 -20 400
95 11 121
98 14 196
80 -4 16
83 -1 1
82 -2 4
93 9 81
86 2 4
80 -4 16
94 10 100
75 -9 81
62 -22 484
================================================
∑X = 1260 ∑= 1662
Now,
(A) Mean =
or
Mean = = 84
(B) Variance =
or
Variance =
or
Variance = 118.714
(C) Standard deviation = √Variance = √118.714 = 10.89