Using the normal distribution, it is found that there is a 0.877 = 87.7% probability of a bulb lasting for at most 569 hours.
<h3>Normal Probability Distribution</h3>
The z-score of a measure X of a normally distributed variable with mean and standard deviation is given by:
- The z-score measures how many standard deviations the measure is above or below the mean.
- Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.
The mean and the standard deviation are given, respectively, by:
The probability of a bulb lasting for at most 569 hours is the <u>p-value of Z when X = 569</u>, hence:
Z = 1.16
Z = 1.16 has a p-value of 0.877.
0.877 = 87.7% probability of a bulb lasting for at most 569 hours.
More can be learned about the normal distribution at brainly.com/question/24663213
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None of them are parallel but D. is perpendicular. I'm sorry if this doesn't help...
Answer:
a = 10 cm
Step-by-step explanation:
Area of triangle, A = 51 cm²
base, b = 10.2 cm
Let height of triangle be a cm
<em><u>Formula:-</u></em>
hence, the missing length is 10 cm
The awnser is ______ ____ ___ _____ __
Step-by-step explanation:
Given the information that the scale of 1 : 60
- a. Plot a point which is 240 cm from A and is on the line AB.
Scale = 1 : 60
<=> 240 cm = 4 cm
Use a compass with the width = 4 cm and the center is point A then you draw an arc such that it intersect line AB . After that, we will have a point (the intersection point) which is which is 240 cm from A and is on the line AB
- b) Plot a point which is 240 cm from A and is on the line CD.
Scale = 1 : 60
<=> 240 cm = 4 cm
The same way in the answer A, use a compass with the width = 4 cm and the center is point A then you draw an arc such that it intersect line CD . After that, we will have a point (the intersection point) which is which is 240 cm from A and is on the line CD
- c) Plot a point which is 240 cm from A and is 96 cm from the line CD
96/60 = 1.6 cm
We will D draw a line parallel to CD at a distance of 1.6 cm, then we will use use a compass with the width = 4 cm and the center is point A then you draw an arc such that it intersect line CD.
Hope it will find you well.