in an experiment, researchers record the amount of time it takes for a dog to naivigate through a maze and find a treat. the observed times, in seconds, are: 57, 57, 68, 72, 74, 77, 80, 88, 96, 105. what is the interquartile range of the observed times

mean, 40.6

step-by-step explanation:

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investment b is an ordinary annuity with $3,909.64 in the account after one year.

step-by-step explanation:

x =-.20752

step-by-step explanation:

4^(x+2)=12

4^(x+2)=12

take the log base 4 on each side

log 4 (4^(x+2) = log 4(12)

we know log b(a^y) = y log b (a)

(x+2) log 4(4) = log 4 (12)

x+2 = log 4 (12)

we know   logb c = loga c/loga b

we want to convert to base 10   so a = 10

by default, we do not write the 10   c = 4   and b = 10

log4 10 = log 12/log 4

log4 10 = log 12/ log 4

x+2 = log 12/ log 4

subtract 2 from each side

x +2 -2 = log 12/ log 4 -2

x = 1.79248125 -2

x =-.20752