Aresearcher records the time (in seconds) that participants arrive late for a scheduled research study. assuming these data are normally distributed, which measure of central tendency is most appropriate to describe these data? mean median mode range

mean

Step-by-step explanation:

Normal distribution curves Is a distribution curve having different mean values with a standard deviations  

the correct option: mean

A normal distribution curve is standardized as follows:

(a) The mean value of the unstandardized curve is made the origin, thus making the mean value, x, zero.

(b) The horizontal axis is scaled in standard deviations. This is done by letting z= x−x/ σ , where z is called the normal standard variate, x is the value of the variable, x is the mean value of the distribution and σ is the standard deviation of the distribution.

i pretty sure it is

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.