Determine the theoretical probability of tossing two heads with two coins rolling a 2 or 5 with one die

The theoretical probability of tossing a heads with one coin is 1/2 since there are 2 sides. You have to multiply 1/2*1/2, because there are now two coins. 1/2*1/2=1/4 so the probability of rolling 2 heads on 2 coins is 1/4. The probability of rolling a 2 or 5 on a dice is 2/6 or 1/3. This is because there is a total of 6 sides on a dice and 2 or 5 are 2 possibilities so the probability would be 2/6. You can simplify this to 1/3. You now have to multiply 1/4*1/3 since it says 2 heads with 2 coins. 1/4*1/3=1/12. 1/12 is your final answer.

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.