Answer: The total number of visitors in first 8 weeks is 12750.
Step-by-step explanation: Given that the number of visitors to a website in the first week is 50. The number of visitors each week is double the number of visitors the previous week.
We are to find the total number of visitors to the website in the first 8 weeks.
Number of visitors in 1st week = 50.
Number of visitors in 2nd week = 50 × 2 = 100.
Number of visitors in 3rd week = 100 × 2 = 200.
Number of visitors in 4th week = 200 × 2 = 400.
Number of visitors in 5th week = 400 × 2 = 800.
Number of visitors in 6th week = 800 × 2 = 1600.
Number of visitors in 7th week = 1600 × 2 = 3200.
Number of visitors in 8th week = 3200 × 2 = 6400.
Therefore, the total number of visitors in the first 8 weeks will be
Thus, the total number of visitors in first 8 weeks is 12750.
Answer:
Sample size should be atleast 617
Step-by-step explanation:
given that a 95% confidence interval for the mean of a population is to be constructed and must be accurate to within 0.3 unit.
i.e. margin of error <0.3
Std devition sample = 3.8
For 95% assuming sample size large we can use z critical value
Z critical = 1.96
we have
Sample size should be atleast 617 to get an accurate margin of error 0.3
Answer:
Length of JK is 68.27 units.
Step-by-step explanation:
By applying geometric mean theorem (leg theorem) in the triangle attached,
(KL)² = (KM)(JK)
(32)² = (15)(x)
x =
x = 68.2666
x ≈ 68.27
Therefore, length of JK is 68.27 units.