Determine the sum of the first k odd positive integers for a number of values of k. what generalizations occur to you? are your inferences correct for all positive integers k?

Let be the i-th odd positive integer number,

Step-by-step explanation:

Let be the i-th odd positive integer number

It seems that the sum of the first k odd positives integers is

Note that,

thus,

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.

£56

step-by-step explanation: