Maths S1

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C S X Y S Q U R T S S X X S X Y W B H P H
P J U R I S Q U R T V A R I A N C E T G W
I Q G D Y L I L H W U F R C H O X A T T S
I E S E N G X V C Y B D W Q F V F M B N T
W C A W P W O S K P K D W G V Y L Y Q U W
B H D L C I Q N Q D U C Y B S E V I S E K
T O T A L X Y T O T A L X T O T A L Y N U
Y E C J C J Q L A Y U B M F L B Y A H K P
S P N B O U T I J F O V Y F T L H B V E R
P F O W N F X U T H E M I D P O I N T B C
N A H R T B H Y T F E W C X D L S L S X F
I J Q F I T G X T X U Y V J R V K Q U N W
G W F R N R T A B D G E Y Q C S U Q P S U
X Y C C U B N K J M S K A N V A Y D A F Y
V N O J O P D M S K H Y V L Y S S F S L S
Y G O U U X M R R L O C M W P F W C E P T
R K D W S N C U I L H E F B N F D K W Q I
L Q O V C I P A U B P A P B P A N B L Y P
E F P G D E I O B V C T O V V K D B J I A
J L V K Q M P X E N R J B T M K H D O M S
U X P F O E L R Y E T T Q A Y D A B J J J

Clues

  • how do you find the standard deviation (13)
  • What do you use to find the mean in grouped data? (3, 8)
  • what does Sxy = (7, 13)
  • What is a variable that can have any value (10)
  • what is the formula for r in terms of correlation? (11, 1, 3)
  • What is the probability addition rule? (8, 4)

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