Answer:
the third one
Step-by-step explanation:
Answer:
x ≤ 2
Step-by-step explanation:
Isolate the variable, x. Note the ≤ sign, treat it like an equal sign, what you do to one side, you do to the other.
First, subtract 3 and x from both sides:
2x (-x) + 3 (-3) ≤ x (-x) + 5 (-3)
2x - x ≤ 5 - 3
Simplify:
2x - x ≤ 5 - 3
x ≤ 2
x ≤ 2 is your answer.
~
Answer: 
test statistic.
Step-by-step explanation:
The chi-square ( ) test is a non-parametric statistical test(also known as Goodness of fit test) which is used to determine if a distribution of observed frequencies differs from the expected frequencies.
Chi-square statistic uses either nominal (categorical) or ordinal level data.
Hence, When determining how well an observed set of frequencies fits an expected set of frequencies, the test statistic is test statistic.
Answer:
10 quarters and 15 dimes
Step-by-step explanation:
25 = Quarters + Dimes
Total worth = $4.00 = 0.25* Quarter + 0.1*Dimes
so...
25 = Q + D , D = 25 - Q
4 = 0.25*Q + 0.1 * (25 - Q)
4 = 0.25 * Q + 2.5 - 0.1*Q
1.5 = 0.15Q
Q = 10
D = 15
