A theater gives away one free ticket to every 10 th customer and two free tickets to every 25th customer. The manager wants to g
1 answer:
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Answer:
Step-by-step explanation:
You first equate it to zero to get:
Then solve using square root method
Or
Now work it backwards
Hence the factored form is:
Answer:
0.01596
Step-by-step explanation:
A scientist claims that 8% of the viruses are airborne
Given that:
The population proportion p = 8%
The sample size = 477
We can calculate the standard deviation of the population proportion by using the formula:
The required probability can be calculated as:
= P(Z < -2.41) + P(Z > 2.41)
= P(Z < -2.41) + P(Z < -2.41)
= 2P( Z< - 2.41)
From the Z-tables;
= 2 ( 0.00798
= 0.01596
Thus, the required probability = 0.01596