Question:

Q1: for the data given below calculate the variance classes 0-1 2-3 4-5 6-7 8-9 frequency 3 4 8 0 6?

by  |  earlier

0 LIKES UnLike

Q2: at a petrol pump cars arrive in the following pattern

time number of customers

7am till 9am 89

9am till 12pm 78

12pm till 4pm 56

4pm till 9pm 69

9pm till 12am 48

what percentage of customers arrived until noon?

Q3: what is discount and rebate?

Q4: without using calculator, find the antilogarithm of 0.3365?

 Tags:

   Report

1 ANSWERS


  1. 1.  variance is just (standard deviation)^2, learn how to plug it in your TI calculator, look online for the equation, or type in google "standard deviation calculator" and plug in the frequencies.

    plug in  

    .5(3)

    2.5(4)

                 4.5(8)

                 .....

    2.   C'mon man you can do #2 if your not eight

    4.  Don't know how to do this but antilog(.3365) is just e^0.3365

    Remember that you can derive the equation for e by compounding interest constantly.  

Question Stats

Latest activity: earlier.
This question has 1 answers.

BECOME A GUIDE

Share your knowledge and help people by answering questions.