Answer:
-13
Step-by-step explanation:
-12+3= -9
-9-4= -13
Hope this helps.
Answer:
The approximate probability that the mean of the rounded ages within 0.25 years of the mean of the true ages is P=0.766.
Step-by-step explanation:
We have a uniform distribution from which we are taking a sample of size n=48. We have to determine the sampling distribution and calculate the probability of getting a sample within 0.25 years of the mean of the true ages.
The mean of the uniform distribution is:
The standard deviation of the uniform distribution is:
The sampling distribution can be approximated as a normal distribution with the following parameters:
We can now calculate the probability that the sample mean falls within 0.25 from the mean of the true ages using the z-score:
Answer: C) Response variable
The independent variable (the one the researcher has control over) is the explanatory variable.
Answer: Choice C
x = sqrt(12)
y = 18
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Triangle TRU is a 30-60-90 triangle
RU = 4 is the hypotenuse
UT = 2 is the short leg and half the hypotenuse
RT = long leg
RT = (short leg)*sqrt(3)
RT = 2*sqrt(3)
x = 2*sqrt(3)
x = sqrt(4)*sqrt(3)
x = sqrt(4*3)
x = sqrt(12)
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Angle TRS is 30 degrees
y+12 = 30
y = 30-12
y = 18
24x? i haven’t done these in a while so lmk if i’m wrong