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
Answer:
y=(1/2)x +0
Step-by-step explanation:
The perpendicular slope formula is just the opposite reciprocal of the original slope.
In 15 hours
That or 13 hours, if we don’t include the fall back for the last one tho I highly doubt that so go with 15
I got the answer of 200 because she borrowed 15,000 and she borrowed the money for 8% which is equal to .08 for 6 years so then you divide it by 6 and get 200 but If someone gets something else please correct me.