Thursday, 21 April 2022

Sangster Math, April 21, 2022

 Next probability game

 

M     A      T       H      E       M     A      T       I        C       S

 

These letters (11) are cut out and placed inside a bag.

 

What is the probability of picking a vowel card?

Vowels = A, E, I, O, U

 

There are 11 letters, and 4 vowels. Probably to pick a vowel card is 4/11 or 0.36 or 36%

 

 

What is the probability of picking a consonant card?

Consonants = B, C, D, F, G, H, J, K, L, M, N, P, Q, R, S, T, V, W, X, (Y), Z

 

There are 7 consonants in the word “MATHEMATICS”. 

7/11 chance of picking a consonant card 0.64 or 64%

 

If you draw 888 times from the bag, how many times will you see a vowel card?

0.36 x 888 = 320 vowel cards will be drawn

 

Next question

E          N         C          Y          C          L          O         P          E          D          I           A

 

What is the probability of getting a vowel card?

 

What is the probability of getting a consonant card?

 

If 1234 cards are drawn, approximately how many consonant cards are there?




Rolling dice

- one die

- two or more dice

- no such word as dices

 

When two dice are rolled, list all the possible combinations

1-1, 1-2, 1-3, 1-4,

(1-2 is the same as 2-1. No need to write 2-1)

2-2, 2-3, 2-4. . .

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