For basic statistics using CASIO fx-MS CASIO fx-Tl CASIO fx-W CASIO fx-100S When you are successfully in statistics mode, a symbol should appear at the top of your screen. MODE 2 sd For basic statistics usingCASIO fx-570W When you are successfully in statistics mode, a symbol should appear at the top of your screen. sd MODE 1 For basic statistics using SHARP Advanced D.H.L. calculator When you are successfully in statistics mode, a symbol should appear at the top of your screen. 2 nd F DRG 1 Stat To use your calculator for calculating statistics, you must become familiar with the process of changing into and out of the required mode

BEFORE ENTERING ANY DATA It is important that you are not carrying any previously entered data into the next calculation, so make sure that your memory is cleared. THE FIRST OPERATION YOU DO WHENEVER YOU START TO PROCESS ANY DATA IS TO CLEAR ANY EXISTING DATA. THIS DOES NOT HAPPEN SIMPLY BY TURNING THE CALCULATOR OFF!!! Casiofx-82TL fx-82W fx-570W Casiofx-82MSCasiofx-100S or SHIFTAC=SHIFTMODE= 1 2 SHIFTC Sharp Advanced DHL CA or 2 nd F DEL 2 nd F DRG 1

To check the number of entries: Casiofx-82TL fx-82W fx-570W Casiofx-82MSCasiofx-100S You can also use the “up/down” replay arrows to check and change entries. Sharp Advanced DHL RCLC 0 3 SHIFT 1 = 3

or value of the score This is referred to as the DATA ENTRY key. Entering the data Data may be entered as individual scores, or in multiples of each score. M+ Enter the following data When you have entered them all, check that the number of entries is correct ie To enter the data individually :

Sample symbol Population symbol Calculator symbol Size n N n Mean Standard deviation Variance And now the statistics and their respective symbols These symbols are different on the Sharp calculator To understand the meaning of these statistics, refer to other resources

forsymboluse Sample sizen Mean Population Standard Deviation Sample Standard Deviation To find them on your Casio fx-82MS calculator: SHIFT 1 = S-SUM 3 SHIFT 2 = S-VAR 1 SHIFT 2 = S-VAR 2 SHIFT 2 = S-VAR 3 To calculate the variance, get the s.d. and then use: =

forsymboluse Sample sizen Mean Population Standard Deviation Sample Standard Deviation To find them on the Casio fx-82TL and 570W calculators: RCL C SHIFT 1 = 2 = 3 = To calculate the variance, get the s.d. and then use: =

forsymboluse Sample sizen Mean Population Standard Deviation Sample Standard Deviation To find them on your Casio fx-82W calculator: SHIFT 1 = 2 = 3 = RCL 3 = To calculate the variance, get the s.d. and then use: =

forsymboluse Sample sizen Mean Population Standard Deviation Sample Standard Deviation To find them on your Sharp DHL calculator: RCL To calculate the variance, get the s.d. and then use: =

forsymboluse Sample sizen Mean Population Standard Deviation Sample Standard Deviation To find them on your Casio fx-100S calculator: RCL To calculate the variance, get the s.d. and then use: =

Using the data you have already entered, find the mean, standard deviations and variances for both population and sample mean245 Population sd37.07 Sample sd38.38 Population variance Sample variance If you have not the correct answers, then you will have to re-enter Your data – after CLEARING the previous entries. If you have a Casio fx-82MS, you can check your data entries and correct them. All correct? Great work.

Try this example: If you do not have these answers, first check how you entered the negative values. You must use the +/- or (-) key for negative values – NOT the operation “minus” key , , 66.00, 2.53, -8.10, , 12.10, 18.00, 21.00, , 2.10 mean1.68 Population sd32.97 Sample sd34.58 Population variance Sample variance

To enter multiple or grouped data Enter six 2’s on your calculator ’ x-value SHIFT f M+ ’ 2 SHIFT6 M+ Casio fx 82 MS, TL and W and 570W: × x-value M+ f × 2 6 Casio 100S STO x-value2 nd Ff M+ STO 2 2 nd F 6M+ Sharp D.H.L What if you had to enter 20, 50, …? Now try:

PRACTISE ’ x-value SHIFT f M+ Casio fx 82 MS, TL and W and 570W: × x-value M+ f Casio 100S STO x-value2 nd Ff M+ Sharp D.H.L xf