You need to include the image of the question it doesn’t make sense if
Answer:
3.5
Step-by-step explanation:
Answer: I think it might be the third answer choice
Step-by-step explanation:
since it is going through the points of a parabola
Answer:
See the attachment.
Step-by-step explanation:
The line of a proportional graph always passes through the point of origin, (0, 0).
Also, a proportional graph is a straight line that do not bend.
Therefore, the graph that shows the proportion is the first graph. See attachement.
Answer:
The height below which 20% of the persons lie equals 169.95 cm
Step-by-step explanation:
Given that
Mean height = 175 cm
Standard deviation = 6 cm
Hence for the given question we need to find the standard variate factor ( Z factor) corresponding to the 20% of the area under the standard normal distribution curve
Using the standard normal distribution tables we have Z factor corresponding to an area of 20% equals ( Z = -0.84166)
Thus we have