Question 15 of 20 (1 point) view problem in a pop-up assume that the mean systolie blood pressure of normal adults is 120 millimeters of mercury (mm hg) and the standard deviation is 5.6. assume the variable is normally distributed. use a graphing calculator and round the answers to four decimal places. part 1 if an individual is selected, find the probability that the individual's pressure will be between 120.4 and 121.9 mm hg. p120a

0.1052

Step-by-step explanation:

Given : Mean :

Standard deviation :

We assume the variable is normally distributed.

The formula for z-score is given by :-

For x=120.4

For x=121.9

The p-value =

The probability that the individual's pressure will be between 120.4 and 121.9 mm Hg = 0.1052

26 is 33.33% of 78

step-by-step explanation:

26 is what percent of 78?

26 is p% of 78

equation: y = p% * x

solving our equation for p

p% = y/x

p% = 26/78

p = 0.3333

convert decimal to percent:

p% = 0.3333 * 100 = 33.33%

did you get the answer?