Answer:
23
Step-by-step explanation:
If Abel was born in 1994, in 2019 he would be 23.
1+9+9+4=23
Answer:2.05
Step-by-step explanation:
It's basically asking 75% of what number is 63 so x * 75% = 63
75% in decimal form is .75
divide 63 by .75 which is 84.
so 75% of 84 would be 63.
Step 1 : Divide the numerator by the denominator.
Step 2 : Write the quotient in the front as a whole, remainder in the numerator part and divisor as the denominator.
Therefor you'll have 7 1/7 as a mixed number.
Answer: 90% confidence interval would be (6.022,6.986).
Step-by-step explanation:
Since we have given that
Number of students = 361
Sample mean = 6.504
Sample standard deviation = 5.584
Standard error of the mean = 0.294
At 90% confidence level,
So, α = 0.01
So, z = 1.64
Margin of error is given by
So, Lower limit would be
Upper limit would be
So, 90% confidence interval would be (6.022,6.986).