Answer:
0.0618
Step-by-step explanation:
z = (x - μ)/σ, where
x is the raw score = 69
μ is the sample mean = population mean = 65
σ is the sample standard deviation
This is calculated as:
= Population standard deviation/√n
Where n = number of samples = 25
σ = 13/√25
σ = 13/5 = 2.6
Sample standard deviation = 2.6
z = (69 - 65) / 2.6
z = 4/2.6
z = 1.53846
Approximately to 2 decimal places = 1.54
Using the z score table to determine the probability,
P(x = 69) = P(z = 1.54)
= 0.93822.
The probability that the sample mean is greater than 69 is
P(x>Z) = 1 - 0.93822
P(x>Z) = 0.06178
Approximately to 4 decimal places = 0.0618
Answer:
x = 5
Step-by-step explanation:
5 x's
Answer:
21) 778240
22) 10804
23) 4862.03
Step-by-step explanation:
20.
x is months. There are 12 months in an year, so for this problem use x = 12.
190( 2^12) = 778240
21.
The equation for growth is:
initial_amount((1 + percent_in_decimal_form)^years)
So now equation is 10280(1.01^5) = 10804
22. Use same equation as in #21.
4000 (1.05 ^ 4) = 4862.03
Step-by-step explanation:
When multiplying two exponents together, you will be adding the exponents up.
So...
(6⁵)(6²) = 36⁷
Answer:
tan
Step-by-step explanation:
take 19 degree as reference angle
using tan rule
tan 19=opposite/adjacent
0.34=14/x
x=14/0.34
x=41.17
x=41.2