Answer:
a) 0.194
b) $440.8
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = $9.40
Standard Deviation, σ = $4.40
Formula:
Standard error due to sampling =
a) P(tips from 40 parties > $400)
Thus, the average pay is
P(x > 10)
Calculation the value from standard normal z table, we have,
b) We have to find the value of x such that the probability is 0.01
Calculation the value from standard normal z table, we have,
Thus, the mean tip is $11.02
Tip for 40 parties =
Thus, he earns $440.8 on the best 1% of such weekends.
Answer:
B. 4⁄5
Step-by-step explanation:
7 1⁄5
– 6 2⁄5
-----------------
We need to borrow from the 7 since 1/5 is less than 2/5
7 becomes 6 and the one becomes 5/5
6 5/5+1⁄5
– 6 2⁄5
-----------------
Combining the fraction
6 6⁄5
– 6 2⁄5
-----------------
4/5
Which number(s) from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10}, if any, will solve this equation?
satela [25.4K]
We are given that:
2x + 3 = 5x - 3
We will solve the given to get the value of x as follows:
2x + 3 = 5x - 3
3 + 3 = 5x - 2x
6 = 3x
x = 6/3
x = 2
Now, we will check te given set to see if 2 belongs to the set or not. We will find that 2 is an element in the given set.
Therefore, the correct choice is:
A) {2}
hope this helps :)
Please Send Lions, Monkeys, Cats And Zebras Into Lovely Hot Countries
Signed General Penguin
P - potassium
S - sodium
L - lithium
M - magnesium
C - calcium
A - aluminium
Z - zinc
I - iron
L - lead
H - hydrogen
C - copper
S - silver
G - gold
<span>P - platinum</span>
Answer:
A. Time using table; cost
Explanation:
The time using the table is independent because it doesn't change due to any other variable in the situation.
The cost is dependent because the question says "The cost of plane pool increases with the amount of time using the table..." So depending on the time the table is used it causes the cost to change.