1 2/5m-3/5(2/3m+1) pls help me I need to simply it
1 answer:
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The graph should look like this:
Answer: 0.418 < p < 0.512
Step-by-step explanation: A 95% conifdence interval for a population proportion is given by:
where:
p is the proportion
z is score in z-table
n is sample size
The proportion for people who said "yes" is
= 0.465
For a 95% confidence interval, z = 1.96.
Calculating
0.465 ± 1.96*0.024
0.465 ± 0.047
Interval is between:
0.465 - 0.047 = 0.418
0.465 + 0.047 = 0.512
<u>The interval with 95% of confidence is between 0.418 and 0.512.</u>
Answer:
Step-by-step explanation:
Change the mixed number into an improper fraction
1 =
, hence
÷ 39
To divide, leave the first fraction, change division to multiplication and turn 39 upside down, that is
= ×
cancel the 13 and 39 by dividing both by 13
= =
Answer:
£300
Step-by-step explanation:
We apply the formula for Simple Interest:
where P = Principal
R = Rate of interest
T = Time elapsed (in years)
We are given that P = £5000, R = 3%, T = 2 years
The interest after 2 years will be:
I = £300
The interest Becky will get after 2 years will be £300.