This is the last time its happened twice please i need the answer
1 answer:
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Answer:
Option C
Step-by-step explanation:
The given inequality is
5x-1 < 19 and
Group similar terms to get:
5x < 19+1 and
5x < 20 and
Solve for x to get:
x < 4 and
The correct choice is C
Answer:
See solution below.
Step-by-step explanation:
Answer:
1. A: 0.25; B: 0.03; C: 1.41; D: -0.28
2. A: 0.39; B: 0.06; C: 40.30; D: 21.81
Step-by-step explanation:
For CDF lookups, we used the Excel NORMDIST(x, mean, stdev, TRUE) function. For inverse CDF lookups, we used the NORMINV(x, mean, stdev) function.
Each of these functions works with the area under the curve from -∞ to x, so for cases where we're interested in the upper tail, we subtract the probability from 1, or subtract the x value from twice the mean.
For question 1, we computed the Z values in each case. The NORMDIST function works directly with x, mean, and standard deviation, so does not need the z value.
