Alocal grocery store sells individually packaged slices of cake, all labeled with the same weight of 4 oz. suppose we take a random sample of 49 cake slices and record their weights. the mean weight of our sample of 49 slices is 4.2 oz. assume that the population standard deviation is 0.2 oz true or false? it is very likely that the actual cake slice weight mean is higher than 4 oz a. true b. false

i can't solve unless i know what the line is

step-by-step explanation:

welcome to/p>

any options?

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for