Question

can someone help me with this one its so confusing

46 63 31 49 24 16 21 47 37 56 41 26 27 53 30 26 18 43 25 51 22 27 35 29 21 33 24 22 32 45 30 31 64 23 27 22 38 40 49 34 36 26 58 39 47 34 55 20 27 35

create a frequency table and a histogram of the data using class widths of your choice.

give the 5 number summary and draw a box and whisker plot for the data.

calculate the mean median and mode of the data.

what is the z score for a raw score of 21?


what raw score corresponds to a z score of 1.75?

Answer 1

1.68
2.41676527914237260
3.17053201846945
4.697135097
5.6318
6.34

Answer 2

i believe thats a histogram

Answer 3

http://www.wolframalpha.com/input/?i=mode+of+ {46+63+31+49+24+16+21+47+37+56+41+26+27+53+30+26+18+43+25+51+22+27+35+29+21+33+24+22+32+45+30+31+64+23+27+22+38+40+49+34+36+26+58+39+47+34+55+20+27+35}

Answer 4

it chopped it; mode is 27

Answer 5

mean might be 35.1 ... if wolframs right :)

Answer 6

a median of 32.5

Answer 7

apparently this is why we need the ti-83 plus for stats class :)

Answer 8

i got 48.5 for the median

Answer 9

i just took wolframs calculations for it.... they might be wrong, but its based on computer formulations

Answer 10

for the range i got 48 and for the standard i got 179.889 do you think thats right?

Answer 11

the range = largest-smallest ; the standard deviation? couldnt even begin to guess it :)

Answer 12

64
16
----
48 for the range looks good

Answer 13

the standard deviation looks a bit high, but i cant be surwe