Ming has a standard
5252
52
52
-card deck. A standard
5252
52
52
-card deck has
44
4
4
suits
(♠(♠
(♠
left parenthesis, ♠
,
♣,♦♣ ,\red♦
♣,♦
♣, comma, start color #df0030, ♦, end color #df0030
, and
♥\red♥
♥
start color #df0030, ♥, end color #df0030
))
)
right parenthesis
and an equal number of cards of each suit. She is going to randomly draw a card from the deck
300300
300
300
times, putting the card back in the deck after each draw.
Complete the following statement with the best prediction.
Ming will draw something other than a
♥\Large\red♥
♥
start color #df0030, ♥, end color #df0030
…

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above