20 MATEMATICKA OLYMPIÁDA
70. rocnik Skolsky rok 2020/2021 Domáce kolo
MO
KATEGORIA ZG
Kvalda Pelenka Banka, Recen a Gula sodall skolu do dlane Pecleulen skotla o 15cm
dale ako banka, ktorá skocila odm menej ako Culae Reson skocil 9730 mm, teda o Im
a Idm dalej ako Pelenka Urete poradie a disky skokov vietkyoh kalilov.
(Svetlana Bednárová)

i just took the test, the correct answer is .. 31.5 in.

answer: 80,000

step-by-step explanation:

the population doubles every day.

10,000*2=20,000 day 4

20,000*2=40,000 day 5

40,000*2=80,000 day 6

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;