Biostats: human blood pressure levels are normally distributed. if you measured an individual's blood pressure and found the blood pressure level to have a z-score of 2.1, what would you conclude about that person?

The z score of a number is the number that shows you the distance of a value from its mean.

Using the z-score table, the probability of z = 2.1 is given as 0.98214.

0.98214 x 100 = 98.214%

To learn more, visit the link below:

link

Their blood pressure is in the 98th percentile (higher than that of 98% of all people contributing to the distribution)

Step-by-step explanation:

A z-score of 2.1 corresponds to 0.98214 of the area under a normal distribution curve. (You find this by looking in a table of probabilities or by using a suitable calculator.)

Relatively speaking, the person's blood pressure is quite high.

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %