In tests for extrasensory prception (esp), and experimenter looks at cards that are hidden from the subject. each card contains one of five symbols, and the subject must name the symbol oneach card presented. a subect with no suspected psychic ability has, by chance alone, a 20% chance of correctly guessing the symbol on each card presented. because the cards are independent, the overall proportion of success can thus be expected to be 20%.you have no psychic ability and score 28% correct guesses out of a 25 card deck. is each of the bold values a parameter or a statistic?

, 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

what is the question?

step-by-step explanation:

rotation point l

step-by-step explanation: