Answer:
Sara spent 733.29
Step-by-step explanation:
Answer: a) The probability is approximately = 0.5793
b) The probability is approximately=0.8810
Step-by-step explanation:
Given : Mean : 
Standard deviation : 
a) The formula for z -score :

Sample size = 1
For x= 63 in. ,

The p-value = 

Thus, the probability is approximately = 0.5793
b) Sample size = 35
For x= 63 ,

The p-value = 

Thus , the probability is approximately=0.8810.
Here, we can formulate the slope-intercept equation from the point and the slope:
Slope = -4/-4 = 1
x1 = -2
y1 = 5
By point-slope form:
(y-y1) = m (x - x1)
(y-5) = 1(x +2)
y-5 = x +2
Simplifying to slope-intercept form:
y = x + 7
Therefore, the slope-intercept form would be y = x+7
I hope my answer has come to your help. God bless and have a nice day ahead!
Look at it this way:
-- Since the two groups have the ratio of 4 to 7, then the first group has 4 parts
and the other group has 7 parts.
-- If the first group has 4 parts and the other group has 7 parts, then they have
11 parts all together.
-- Those 11 parts are all parts of 33. There must be ( 33 / 11 ) = 3 items in each part.
Now you can go back to the groups . . .
-- The first group has 4 parts.
With 3 items in each part, that's (4 x 3) = 12 items.
-- The other group has 7 parts.
With 3 items in each part, that's (7 x 3) = 21 items.