The answer should be 24, because you can mark out 5,and 10 cuz it doesn’t make since
Total number of snacks = 60
Total earnings = $220
Assumed all that are sold are small snacks = 60 x 3 = $180
The difference in earnings = 220 - 180 = $40
The difference in snack price = $5 - $3 = $2
Number of Large snacks = $40 ÷ 2 = 20
Number of small snacks = 60 - 20 = 40
Answer: 20 large snacks and 40 small snacks
Answer:
b) 65.08
ii) 0.75
Step-by-step explanation:
x(Kg): 62 63 64 65 66 67 68
Frequency(f): 1 5 11 15 10 6 2
xf: 62 315 704 975 660 402 136
b) mean(X) = ∑xf/N = 3254/50 = 65.08
c) x - X : -3.08 -2.08 -1.08 -0.08 0.92 1.92 2.92
(x - X)²: 9.49 4.33 1.17 0.0064 0.85 3.69 8.53
ii) Standard deviation(S.D.): √(∑(x - X)²/N = √(28.0664)/50 = √0.5613
∴ S.D.= 0.75
4
That’s what my tutor told me