Answer:
82%
Step-by-step explanation:
We let the random variable X denote the number of defective units in the production run. Therefore, X is normally distributed with a mean of 21 defective units and a standard deviation of 3 defective units.
We are required to find the probability, P(17 < X < 25), that the number of defective units in the production run is between 17 and 25.
This can be carried out easily in stat-crunch;
In stat crunch, click Stat then Calculators and select Normal
In the pop-up window that appears click Between
Input the value of the mean as 21 and that of the standard deviation as 3
Then input the values 17 and 25
click compute
Stat-Crunch returns a probability of approximately 82%
Find the attachment below.
Answer:
A Juan le quedan 45 empanadas.
Step-by-step explanation:
Dado que Juan vende 180 empanadas al día, y por la mañana vende las dos terceras partes y por la tarde la cuarta parte de lo que queda, para determinar cuántas empanadas le queda por vender en la noche se debe realizar el siguiente cálculo:
180 x 2 / 3 = 120
180 - 120 = 60
60 x 1/4 = 15
60 - 15 = 45
Por lo tanto, a Juan le quedan 45 empanadas.
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➷ We can assume that the roles will be filled in order
To calculate this, figure out the number of possible candidates for each role
For role 1, there are 9 possible candidates
For role 2, there are 8 possible candidates
For role 3, there are 7 possible candidates
For role 4, there are 6 possible candidates
For role 5, there are 5 possible candidates
Simply multiply all these values together:
9 x 8 x 7 x 6 x 5 = 15120
Therefore, your answer would be B. 15,120
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➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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Answer:
The median, mean, and mode of the data set are 5, 4.8, and both 4 and 5 respectively.
Step-by-step explanation:
To find the median of a data set, line up all values from greatest to least and find the number in the center. For example, in the set 1; 2; and 3, 2 would be the median. In this case, the order would be 2, 4, 4, 4, 5, 5, 5, 6, 6, 7. The two numbers in the middle are 5 and 5, their average is 5, so that would be the median. The mean of a data set is the average of all data values in a set. In this case, there are 10 data values, and their total sum is 48, so the mean of this data set is 4.8. The mode of a data set is the value that occurs the most in a set. In this case, 2 occurs once, 4 occurs three times, 5 occurs three times, 6 occurs twice, and 7 occurs once, so the mode of this data set is both 4 and 5.
Answer: Bert's salary didn't increase while Ernie's salary increased by 11 percent.
Step-by-step explanation:
645 / 580 = 1.11
Simple:
1.11 * 100 = 111
100 is a whole so we subtract 100 from 111 to get 11.
11% is our answer.
It doesn't look like Bert's salary changed, 520 =/ 520
