Answer:
18.5
Step-by-step explanation:
In the above question, we are given the following values
Cumulative probability ( confidence interval) = 0.95 = 95%
Mean = 10.5
Standard deviation = 4.10
We are asked to find the value of x.
To solve for x , we would be using the z score formula.
z score = (x-μ)/σ,
where x is the raw score,
μ is the population mean
σ is the population standard deviation
z score was not given in the question, but we have our cumulative probability as 95%(0.95).
Using the appropriate table,
the z score for 95% confidence is z = 1.96.
Therefore,
z score = (x-μ)/σ,
1.96 = x - 10.5/4.10
Cross multiply
1.96×4.10 = x - 10.5
x = (1.96 × 4.10) + 10.5
x = 8.036 + 10.5
x = 18.536
Approximately to 1 decimal place
x = 18.5
The
expression is: | x | = A + B + (A < C < B)
To simplify
the expression, write without the absolute value sign and we
would get this:
<span>x = A + B +
(A < C < B)</span>
Answer:
the answer is 1.
Step-by-step explanation:
=−1−(−2)
=−1+2
=1
Answer:
7.5 pencils broken in a week (5 days).
Step-by-step explanation:
1.5 pencils broken a day
Now we just multiple this by 5 for each of the school day's.
1.5 pencils * 5 days = 7.5 pencils broken in a week.
Have a nice day! :)
Please mark this answer as brainiest!
W +Y =5000
20/100 x W= 30/100 X Y
W/5=3Y/10
10W=15Y
W=15Y/10=3Y/2
3Y/2+Y=5000
3Y+2Y=10,000
5Y=10,000
Y=2000
AND HENCE W=3 x2000/2=3000
