Answer:
The probability that 12 people in your sample are carrying no cash is 0.0712
Step-by-step explanation:
n = 100
p(no cash) = 0.09
x = 12
By applying binomial distribution
P(x,n) = nCx*px*(1-p)(n-x)
P(x = 12) = 0.074.
The probability that 12 people in your sample are carrying no cash is 0.074.
n = 100
p(less than 50) = 0.78
x = 75
By applying binomial distribution
P(x,n) = nCx*px*(1-p)(n-x)
P(x = 75) = 0.0712
The probability that 12 people in your sample are carrying no cash is 0.0712
Answer:
Average rate of change is <u>0.80.</u>
Step-by-step explanation:
Given:
The two points given are (5, 6) and (15, 14).
Average rate of change is the ratio of the overall change in 'y' and overall change in 'x'. If the overall change in 'y' is positive with 'x', then average rate of change is also positive and vice-versa.
The average rate of change for two points
is given as:

Plug in
and solve for 'R'. This gives,

Therefore, the average rate of change for the points (5, 6) and (15, 14) is 0.80.
Answer:
A
Step-by-step explanation:
It's A because she subtracted a negative and that only make a bigger negative where she should have added
(i) Slope is 
(ii) x - intercept is 
(ii) y - intercept is 
Explanation:
The given equation is 
We need to determine the slope, x - intercept and the y - intercept
(i) Let us determine the slope of the equation.
Since, the equation is of the form
where m is the slope
Thus, comparing the equation
with the general form
, the slope is 2.
Thus, slope is 
(ii) Now, we shall determine the x - intercepts.
The x - intercept can be determined by substituting
in 
Thus, we have,



Thus, the x - intercept is 
(iii) The y - intercept can be determined by substituting
in 
Thus, we get,



Thus, the y - intercept is 