subject
Mathematics, 15.05.2021 14:00 ismailear18

Here is some data about a group of boys and a group of girls. Boys: number: 20
mean height: 1.55 m
range of heights: 0.42 m

Girls: number: 10
mean height: 1.40 m
range of heights: 0.36 m

For the combined group of boys and girls, work out, if possible:
a the number of children
b the mean height
c the range of heights.​

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 20.06.2019 18:04
P= $1400,300 r = 7 1/2% t = 4 what is i ? $4.29 $429.00 $4290.00
Answers: 1
question
Mathematics, 21.06.2019 17:10
The graph of g(x) is a translation of y = which equation represents g(x)?
Answers: 1
question
Mathematics, 21.06.2019 21:30
Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?
Answers: 2
question
Mathematics, 21.06.2019 22:30
Opposite angles in a parrellelogram are
Answers: 1
You know the right answer?
Here is some data about a group of boys and a group of girls. Boys: number: 20
mean height: 1....
Questions
question
Mathematics, 15.12.2020 22:00
question
History, 15.12.2020 22:00
question
Mathematics, 15.12.2020 22:00
Questions on the website: 13722363