Or a population, N = 10,000, μ = 121, and σ = 21. Find to 2 decimal places the z value for
1 answer:
Answer:
The z value is - 2.88
Step-by-step explanation:
The formula of the z-score of a population is z = (x¯ - μ)/(σ/)
The given in the problem is:
- μ = 121
- σ = 21
- x¯ = 112.35
- n = 49
Let us substitute all of these values in the rule above
Simplify up and down
z = - 2.883333
Round it to 2 decimal places
∴ z = - 2.88
The z value is - 2.88
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Answer:
Step-by-step explanation:
Given:
The relation between the number of tickets and total cost for purchasing them.
Let represent number of tickets and
represent the total cost to purchase them.
Now, let the relation be given by the following function:
, where,
and
are constants.
Let us find and
using the values from the table.
For, . So,
For, . So,
Subtract equation 1 from equation 2. This gives,
Now, plug in in equation 1 and solve for
.
Therefore, the function to represent the relationship between the tickets and total cost is given as: