Answer:
1.86
Step-by-step explanation:
Given the following :
X : - - - - 0 - - - - 1 - - - - 2 - - - - - 3 - - - - 4
P(x) - 0.37 - - 0.28 - - 0.22 - - 0.22 - - 0.12
The mean of the distribution can be calculated by evaluated by determining the expected value of the distribution given that the data above is a discrete random variable. The mean value can be deduced multiplying each possible outcome by the probability of it's occurrence.
Summation of [P(x) * X] :
(0.37 * 0) + (0.28 * 1) + (0.22 * 2) + (0.22 * 3) + (0.12 * 4)
= 0 + 0.28 + 0.44 + 0.66 + 0.48
= 1.86
I think it’s c bc it’s descending meaning it’s a negative but I might be wrong bc I haven’t practice this in a while
It is b because you round to the nearest 100 and I got it right on the quiz
Answer:
y = 10/7
Step-by-step explanation:
(4,2) (-3,1)
slope = (2 - 1)/(4 - (-3)) = 1/7
point-slope form = y - y1 = m(x - x1)
y - 2 = 1/7(x - 4)
or if you want it in slope intercept form:
y = 1/7x - 4/7 + 2
y = 1/7x + 10/7
Hope this helps!
She paid 10% tax and 15% tip in addition to the $60. Therefore the total will be:
$60 + $60(0.10) + $60(0.15)
= $60 + $6 + $9
= $75