Answer:

Step-by-step explanation:
Already, we are given 12% of our sample size as 24.
To find the sample size, we equate to find 100%.
Let sample size be denoted by 

Hence, the sample has 200 families.
Answer:
Nina is not correct because 393.5$ less then yesterday's ticket sales.
Step-by-step explanation:
To find total sales she he is not correct because
3 / 4 of 1440 = 1,080$ ticket sales from yesterday
and 295.25 - 33.50 = 261.75$
Therefore, ( 3 / 4 * 1440 ) + ( 295.25 - 33.50 ) = 1,341.75$ sale of today
Ticket from yesterday and today
1,080 - 1,341.75 = 393.5
393.5$ less then yesterday's ticket.
Applying the given probabilities, it is found that there is a 0.42 = 42% probability of watching a movie today.
These following <em>probabilities </em>involve a movie being watched today:
- 0.5 of 0.6(if it rains today).
- 0.3 of 1 - 0.6 = 0.4(if it does not rain today).
Hence, adding them:

0.42 = 42% probability of watching a movie today.
A similar problem is given at brainly.com/question/14398287
12+2+8+6+57=85
85/5= 17
mean=17