The scores on a standardized test are normally distributed with a mean of 80 and standard deviation of 5. What test score is 0.9 standard deviations above the mean?

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"