Answer:
probability of left handed female is
Step-by-step explanation:
you have 140 employees, and we know 65 employees are male. to work out how many female employees we minus 65 from 140 to get 75 female employees
we are told 31 females are left hand, to work out how many female are right handed we do 75-31 which equals 44 right handed females
if 90 of the total employees are right handed, and 44 females are right handed, in order to find how many males are right handed we do 90-44 which gives us 46 right handed males
to workout how many males are left handed, since we have 65 makes and 46 are right handed, just go 65-46 which gives us 19 left handed males
in order to find the probability of choosing a left handed female out if 140 employees, since we know there are only 31 left handed females out of 140 employees we just go
Answer:
10
Step-by-step explanation:
100% = 40 teams
1% = 40 ÷ 100 = 0.40
25% = 0.40 x 25 = 10
Answer with explanation:
Equation of Linear Regression line is
y=1.14 x + 3.805
A line of regression is that line which passes through none of the points, few points or all the points in the two dimensional coordinate plane.It tells value of one variable when another variable is known.
for, x=30
y=1.14 × 30 +3.805
y=34.20 +3.805
y=38.005
y=38 (approx)
So, Ordered pair is , (30,38)
Option B
The equation for the midpoint of a line segment is
. Thus, the midpoint of this segment is
.
Answer: (2.54,6.86)
Step-by-step explanation:
Given : A random sample of 10 parking meters in a beach community showed the following incomes for a day.
We assume the incomes are normally distributed.
Mean income : 
Standard deviation : 
The confidence interval for the population mean (for sample size <30) is given by :-
Given significance level : 
Critical value : 
We assume that the population is normally distributed.
Now, the 95% confidence interval for the true mean will be :-
Hence, 95% confidence interval for the true mean= (2.54,6.86)
