Which one of the following is not correct for a normal distribution? Explain your choice. A. The density curve is symmetric and the mean is at the center of the symmetry of the curve.
B. The standard deviation is the distance from the center to the change-of-curvature points on either sides.
C. The quartiles are located about 1 standard deviation away from the mean.

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step-by-step explanation:

d is the only accurate one

step-by-step explanation:

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation:

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm