20/100 in simplest form is 1/5
Answer
$60+1/4c=$147.50
Step-by-step explanation:
makes $60 a day
1/4 of customer sales= 1/4 c
equal 147.50
so 60+ 1/4 c = 147.50
Answer with explanation:
The 90% confidence interval (51%, 61%) for proportion means that the proportion of getting heads lie in it.
Given : Total number of times coin is tossed = 250
Number of times they got head =140
The probability of getting a head = 0.56
The confidence interval for proportion is given by :-

Given significance level : 
Critical value : 
Now, the 90% confidence interval for proportion will be :-

Hence, the given confidence interval is correct.
Answer:
(1.5,2)
Step-by-step explanation:
you add the x coordinates then divide them by 2
And then you add the y coordinates then divide them by 2