Step-by-step explanation:
First, find the expected value.
μ = 0 (0.28) + 1 (0.37) + 2 (0.22) + 3 (0.08) + 4 (0.05)
μ = 1.25
Now find the standard deviation.
σ² = (0−1.25)² (0.28) + (1−1.25)² (0.37) + (2−1.25)² (0.22) + (3−1.25)² (0.08) + (4−1.25)² (0.05)
σ² = 1.2075
σ = 1.099
If we were to select many boxes of bulbs randomly, the number of defective bulbs would typically vary about 1.099 from the mean.
Answer:
c. y = x - 6
Step-by-step explanation:
This question wants you to find the equation in slope-intercept form, each is y=mx+b, where m is the slope and b is the y-intercept. The first thing to do is find the y-intercept, to do this find the value of y when x equals zero. The way to do this is to look the value of y on the y-axis. In this case, the y-intercept is -6. Then, find the slope; since you are given the graph you can count out the slope. To do this find out how much the y and x values change. On this graph, y increases 1 when x increases 1, so the slope is 1/1 or one 1. So the equation is y=1x-6, which simplifies to y=x-6.
Answer:
p = -7/2
Step-by-step explanation:
Distribute to get 2p+4<−2p−10
Add 2p to both sides
Subtract 4 from both sides
4p<-14
Divide both sides by 2
-7/2
Answer:
30.28
Step-by-step explanation:
6.25 percent of 28.50 is 1.7815 1.78 rounded
28.50+1.78=30.28
Hi the answer is 9sin ur welcome Hope this helps have a great day
