The grades recelved by 200 students follow a normal distribution. the mean of the grades is 70%, and the standard deviation is 7%.

the number of students who received a grade greater than 70% is about
is about
, and the number of students who got a grade higher than 84%

the median here is 25. your lowest value is 14 and highest value is 48. to find the third quartile, find the medium number in between 25 and 48 which would be 42 i believe.

m a t h w a y. c o m

step-by-step explanation:

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)