27 = 2x + 3
- 3 - 3
--------------------
24 = 2x
------ ------
2 2
12 = x or x = 12
Answer:17
Step-by-step explanation:
Plug in 4 in the place of x and then add 1
Answer:
a. positive.
Step-by-step explanation:
Matching and discordant pairs are used to describe the relationship between pairs of observations. To calculate matched and discordant pairs, data is treated as ordinal values. Therefore these are suitable for your application. The number of concordant and discordant pairs is used in Kendall's tau calculations, whose purpose is to determine the relationship among two ordinal variables.
If the direction of the classifications is the same, the pairs are concordant.
A pair of observations is discordant, suppose the subject being with an increased value on one variable is lower on the other.
SO; When discordant pairs exceed concordant pairs in a P-Q relationship, Kendall's tau reports a(n) <u>positive</u> association between the variables under study.
Answer:1/870
Step-by-step explanation:
The total number of student in Mr parietti class is 30 (18girls and 12boys). If a student is first chosen at random from the class. The probability of choosing 1 student out of 30 will be 1/30.
He then chose another student without replacing the first, the probability of choosing that second lady will be 1/29 (since the remaining students are 29).
the probability that both students chosen are girls will be 1/30×1/29 = 1/870
2500/5=500 this is the unit rate