Answer:
Step-by-step explanation:
The reciprocal of 5: 
The negative reciprocal of 5: 
25% = 0.25
40 / 0.25 = 160
40 is 25% of 160.
There are 160 children in the club.
Answer:
b. False
Step-by-step explanation:
P(X & Y) = 0.77 + 0.65 - 0.9 = 0.52
P(X) × P(Y) = 0.65×0.77 = 0.5004
Since P(X&Y) and P(X)×P(Y) are not equal, they are not independent
Answer:
yes
Step-by-step explanation:
Answer: The mean of the data is 278.
Step-by-step explanation:
To the the mean of the data, we’ll have to add all the numbers up and divide it by the amount of data.
275+279+279+276+278+277+280+282+284+270=2780
2780/10=278
