Question 9 (1 point) The following set of twelve data values...

Question 9 (1 point) The following set of twelve data values has a mean of 49.25 and a standard deviation of 3.93 . What percent of these data values are within one standard deviation of the mean? 44, 44, 45, 47, 48, 49, 50, 50, 51, 52, 55, 56 Round your answer to the nearest percent. Do not include the percent sign (e.g. if your answer was 41.667%, you would enter 42) Your Answer: Answer

Transcript

00:01 Hello students we are going to write here for this this must be written as mean value must be we are going to write here for this so let's erase this to make it more clear so basically x bar must be equivalent to 49 .25 so basically if i write here for this in the given question our standard standard deviation must be we are going to write here for this this must be our sigma this must be 3 .93 so let's erase this to make it more clear we are going to write here for this this must be written as a data a data is within is wherein we are going to write here for this one standard one standard we are going to write here standard deviation deviation of deviation of mean we are writing here if if it is it is inside the interval inside so let's erase this to make it more clear inside inside interval so basically we are going to write here x bar minus sigma x bar plus sigma so basically we are writing here this must be written as x bar is 49 .25 minus 3 .93 and 49 .25 plus 3 .9 .9 .25 plus 3 .9 .9 .3 so basically we are going to write here for this now now they there are seven data's.

02:01 We need to write here which which lie inside.

02:08 So let's erase this to make it more clear which lie inside this interval.

02:17 So we are writing here lie inside this interval out of total.

02:23 Out of total 12 data so we can easily check so we can easily write here given data is 44 4 .44 according to our question then 45 we are going to write here 47 then this must be 49 48 49 then 50 then we need to write here 51 this must be 52 and then 55 and we are writing here this must be 56 so this must be written as we are going to write here for this we needed to erase this to make it more clear 45 .3 to 45 .32 comma 53 .18 so basically if i basically so let's erase this to make it more clear if i write here for this, so basically this must be again we are going to write if i write here for this.

03:31 This whole, so basically our percentage is, so seven data's out of total 12 data's are there.

03:39 So what we need to write here and we can check this too.

03:45 So basically this is between this we need to check.

03:49 So 47, 48, 49, 50, 51, 52, right.

03:56 And this must be...

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