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Answer:
$855
Step-by-step explanation:
The formula for simple interest is I = PRT where I is the interest paid/earned, P is the principal amount deposited/invested, R is the rate as a decimal, and T = time in years.
I = PRT
I = (4500)(0.019)(10)
I = $855
Answer:
hope it helps
Step-by-step explanation:
Finding square roots of numbers that aren't perfect squares without a calculator
1. Estimate - first, get as close as you can by finding two perfect square roots your number is between.
2. Divide - divide your number by one of those square roots.
3. Average - take the average of the result of step 2 and the root.
4. Use the result of step 3 to repeat steps 2 and 3 until you have a number that is accurate enough for you.
Answer: Option 'B' is correct.
Step-by-step explanation:
Since we have given that
P(A) = 0.5
P(B) = 0.5
P(C) = 0.15
P(D) = 0.7
P(E) = 0.15
We need to find the independent events.
When we consider,
P(A∩D) = P(Event A and Event D) = 0.35
and
P(A) × P(D) = 0.7 × 0.5 = 0.35
We get that
P(A∩D)= P(A) × P(D) = 0.35
All other options are not satisfying the conditions of "Independent events".
Hence, Option 'B' is correct.
Answer: The level of confidence is 86%.
Step-by-step explanation:
From the information given
Number of sample, n = 100
Mean, u = $37.51
Standard deviation, s = $16.44
Firstly, we would determine the upper and lower limits of the mean. Therefore,
For upper limit, it is
39.95 - 37.51 = 2.44
For lower limit, it is
37.51 - 35.07 = 2.44
Limit = ± 2.44
We will apply the formula
Confidence interval which is expressed as
= mean ± z × standard deviation/√n
It becomes
37.51 ± z × 16.44/√100
= 37.51 ± z × 1.644
= 37.51 ± 1.644z
Therefore,
1.644z = 2.44
z = 2.44/1.644 = 1.48
The level of confidence corresponding to the z value is 86%
