Answer:
0.2005
Step-by-step explanation:
Mean, m = 65000
Standard deviation, σ= 7000
Sample size, n = 25
Let X = random variable of salary
Recall:
Z = (μ - x) /(σ/√n)
P(62500 ≤ x ≤ 64000) =?
Pr((65000 - 62500)/7000/√25 ≤ z ≤ (65000 - 64000) / 7000/√25)
P(2500 / 1400 ≤ z ≤ 1000/1400)
P = (1.79 ≤ z ≤ 0.714)
Using the normal distribution table or a Z probability calculator
0.4633 - 0.2624
= 0.2009
The answer would be D.-13/21
Answer:
The 1st the 3rd and 4th are the answers
Step-by-step explanation:
Edgen
The figure is an illustration of laws of sines, and the distance from A to B is 2534 feet
<h3>How to determine the distance AB?</h3>
The given parameters are:
DAB = 25°
L = 1700
ACB = 15°
Start by calculating the measure of angles CAB and ABC
CAB = 180 - DAB
This gives
CAB = 180 - 25°
CAB = 155°
Also, we have:
ABC = 180 - CAB - ACB
ABC = 180 - 155 - 15
ABC = 10°
The length AB is then calculated using the following laws of sines
This gives
Make AB the subject
Evaluate
AB = 2533.8151116
Approximate
AB = 2534
Hence, the distance from A to B is 2534 feet
Read more about laws of sines at:
brainly.com/question/16955971
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