Gina Wilson (All Things Algebra” LLC), 2012-2017 Year
Time (s)
422
4. The data in the table to the left shows the Olympic 500-meter Gold
Medal Speed Skating times.
a) Find the line of best fit:
1980
1984
1988
1992
1994
1998
b) Estimate the 500-meter time for the 2020 Olympics.
432
404
420
395
382

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

what is the answer to this

y/x of point b= y/x of point a

step-by-step explanation:

(i got the same question, this was the correct answer.)

i think this is a open ended question but i agree with other guy who said you should ask it at english section