Refer to the accompanying data set and use the 25 home voltage measurements to construct a frequency distribution with five classes. Begin with a lower class limit of 122.0 ?volts, and use a class width of 0.2 volt.
Does the result appear to have a normal? distribution? Why or why? not?
Yes, because the frequencies start low, reach a maximum, then become low again, and are roughly symmetric about the maximum frequency.
You might also like to view...
Which of the following describes the shape of dust particles, based on polarization of light?
A) diamonds B) cubes C) spheres D) disks E) rodlike
Two masses, A and B, are attached to different springs. Mass A vibrates with an amplitude of 8 cm at a frequency of 10 Hz and mass B vibrates with an amplitude of 5 cm at a frequency of 16 Hz
How does the maximum speed of A compare to the maximum speed of B? A) Mass A has the greater maximum speed. B) Mass B has the greater maximum speed. C) They are equal.
A CD player uses a laser whose light frequency is 3.85 × 10^14 Hz. Calculate the energy, in joules, of the photons
A combination of two or more substances in which they no longer retain their chemical properties is called a(n)
A) mixture. B) compound. C) heterogeneous mixture. D) periodic trend. E) suspension.