The formula of the margin of error of the sample mean.
MOE = standard deviation / square root (sample size).
MOE = 0.043 * 15 / square root (15)
MOE = 0.1665
So, the margin of error of the sample mean is 0.17
Answer:
Step-by-step explanation:
Answer:
x = (y+6)÷5
Step-by-step explanation:
y=5x-6 (adding 6 both sides)
y+6=5x (dividing by 5 both sides)
x = (y+6)÷5 Answer
Answer:
No.
Step-by-step explanation:
236÷4=59
&
195÷3=65
<em>To check if either of them drove 116 miles in 2 hours, I would multiply the sum of the division problems by 2(for 2 hours).</em>
59 x 2 = 118
&
65 x 2 = 130
None of them equals 116, meaning neither of them drove 116 miles in 2 hours.
<u><em>Hope I helped you! Have a great day! :)</em></u>
Given:
Number of girls = 20
Number of boys = 30
The president must be a girl and the vice president a boy
To find:
Number of ways to choose a president, vice president, and secretary.
Solution:
The president must be a girl and the vice president a boy. So, out of three students 1 is girl and 1 is boy. Third student can be a girl or a boy.
Total number of ways = Selecting 2 boys and 1 girl + Selecting 1 boy and 2 girls
Therefore, the required number of ways is 12500.