Question

Precalc help someone pleaaassseeee <3 <3 urgent

Answer 1

Hi, do ou know how to make a stem and leaf diagram?

For qs20, you need to put the data into a stem and leaf diagram which will enable you to work out the answer :)

Answer 2

If you need any more help on q20, let me know.

For qs21, I think that from the stem & leaf diagram, you can simply count the numer of values in the stem for values beginning with 13. I have not done stats in a while but I think that's the method.

Answer 3

For qs22, the mean is simply the average value. To calculate this, you add up all the values and divide by the number of values.

Answer 4

how would I format the answer for q 20?

Answer 5

just kidding i figured that out, thank you!!!

Answer 6

For q20, it's best to do 2 stem and leaf diagrams, one which is unordered then one that is ordered. You do an unordered on like in the diagram I've attached. I have filled in some values for an unordered stem and leaf.

Answer 7

wow thanks so much

Answer 8

Your welcome, let me know how you get on with the others :)

Answer 9

I got
10 for q20
2 for q21
112.9 for q 22
112 for q 23

Answer 10

Hi, sorry for the late reply! The stem beginning with 10 is correct for q20.

q21 is also right and so are q22 and q23.

Well done :D