Question

Can someone check/help me with this frequency table? I want to know if I'm doing this right.

Type -- Frequency----Pecentage-----Measure of Central Angle
O+ ------6 ------------ 33
O- -------1 ------------ 05
A+ ------6 ------------ 33
A- -------1 ------------ 05
B+ ------2 ------------ 11.7
B- -------1 ------------ 05
AB+ ----1 ------------ 05

Total --18 ----------- 97.7

Answer 1

Oh yea, heres the question info:

Below are the blood types of 18 blood donors.

O+ A+ B+ O+ AB+
O- B+ A+ A+ B-
A- O+ A+ O+ O+
A+ A+ O+

Answer 2

If you are going to say that B+ is 11.7 % then you should say that )-, A-, B-, and AB+ are 5.6% and that O+, and A+ are 33.3%

Answer 3

That might help your total be closer to 100% which would be good.

Answer 4

thank you, for the measure of all I have to do is x the fraction by 360 right?

Answer 5

Oh, you're making a circle graph?

Answer 6

yeah I'm doing that too.

Answer 7

You can use the fractions times 360 or the percents times 360 to get the degree measure of the sector. Whichever one is more convenient. Since the fractions are not rounded, they might give a slightly more accurate result.

Answer 8

Sweetness, I think I get it now. It's alright if it isn't perfectly 100 or 360 degrees though right? Just making sure. If so I'm good to go.

Answer 9

It should be close. Also I don't know what you instructor's requirements are.