![subject](/tpl/images/cats/mat.png)
Mathematics, 29.01.2020 01:00 softballgirl3589
Asmall shop sells a variety of smartphones. suppose we know that the battery life of smartphone a is normally distributed with a mean of 15 hours and a standard deviation of 6.4. also suppose we know that the average battery life of smartphone b is 12 hours with a standard deviation of 4.2. we know that smartphone c has the greatest standard deviation of battery life of 7.5. twelve hundred of the four thousand customers of the shop use smartphone a. seven hundred fifty of the customers use smartphone b. 1.1. if we choose 16 smartphone a users, what is the probability that their mean battery life will be between 14.5 and 17 hours?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:20
Find the image of a(4, -2) after it is reflected over the line y= 2, then reflected over the line x = 2. (-8,6) o (0.-2) o (0,6) (-8, -2)
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:40
The number of lattes sold daily for two coffee shops is shown in the table: lattes 12 52 57 33 51 15 46 45 based on the data, what is the difference between the median of the data, including the possible outlier(s) and excluding the possible outlier(s)? 48.5 23 8.4 3
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).
Answers: 1
You know the right answer?
Asmall shop sells a variety of smartphones. suppose we know that the battery life of smartphone a is...
Questions
![question](/tpl/images/cats/en.png)
English, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/en.png)
English, 14.09.2020 23:01
![question](/tpl/images/cats/en.png)
English, 14.09.2020 23:01
![question](/tpl/images/cats/istoriya.png)
History, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/geografiya.png)
Geography, 14.09.2020 23:01
![question](/tpl/images/cats/istoriya.png)
History, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01
![question](/tpl/images/cats/en.png)
English, 14.09.2020 23:01
![question](/tpl/images/cats/mat.png)
Mathematics, 14.09.2020 23:01