Abid buys some bags of buttons. There are 23 buttons or 24 buttons or 25 buttons or 26 buttons in each bag.
The table gives some information about the number of buttons in each bag.
Number of
buttons
Frequency
The total number of buttons is 580
23
X
Find the value of x.
+
24
8
25
1
26
6
Total marks: 3

Which of the following is a function? a.) {(-2, -4/5), (-1,-,,-1)} b.) {(-2,,1/,3/,1)} c.) {(-22)} d.) {(-21)}

Can you me find the missing length. i attached an image.

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?