12 girls - 48%
48% ÷ 12 = 0.25
100% - 48% = 52%
1% - 0.25
52 % = 0.25 × 52 = 13 boys
Answer:
? we dint know
Step-by-step explanation:
Answer:
The entire population will have a mean difference of μD = 0.
Step-by-step explanation:
This case is a null hypothesis for a test of repeated measures of two tails. The general null hypothesis is a hypothesis of no difference. We must find the differences of each pair and then find the mean of these differences.
Under a null hypothesis it is established that the population mean of the differences is 0.
Therefore, the correct option is the entire population will have a mean difference of μD = 0 (first option).
Second option is incorrect: It considers the sample instead of the population.
Third option is incorrect: It says that the mean difference is different from zero.
Forth option is incorrect: It says that the mean difference is different from zero.
Hope this helps!
Answer:
D. Yes The Triangles ARE ≅
Step-by-step explanation:
By definition equilateral triangles have all equal angles and sides. Since they share a side that means one of each triangle's sides are congruent. Using the transitive property (if side a ≅ side b and side b ≅ side c, then side a ≅ side c), you can prove that all other sides are congruent or equal in measure, no matter how you pair them.
