Answer: 1068
Step-by-step explanation:
Formula of sample size :
, where p = prior population proportion , E = margin of error , = Critical z- value.
Let p = proportion of visitors who are repeat visitors.
Given : p=0.5
E= 3%= 0.03
critical z-value for 95% confidence = 1.96
Now,
[round to the next integer]
Hence, the required sample size = 1068
Answer:
Step-by-step explanation:
Find the area of the 4 triangles and add them.
Area of triangle = base × height × 0.5
Answer:
7/10
Step-by-step explanation:
2/5 is tha same as 4/10
so 4/10 plus 3/10 is 7/10
Answer:
26 units
Step-by-step explanation:
The distance is found by subtracting the numbers
13- -13
13 + 13
26
We know that -13 to 0 is 13 units
0 to 13 is 13 units
13 + 13 is 26 units