Answer:
A
Step-by-step explanation:
Given
- 2 + 
= 6 ( isolate the radical by adding 2 to both sides )
= 8 ( square both sides )
3x - 2 = 8² = 64 ( add 2 to both sides )
3x = 66 ( divide both sides by 3 )
x = 22 → A
Answer:
You can do this by dividing the radicand by the square number , and multiplying the radical by the root of that number.
e.g.
Answer:
1199
Step-by-step explanation:
There are 22 terms in the sum:
23 + 26 + 29 + ... + 80 + 83 + 86 =
= (23 + 86) + (26 + 83) + ... + (53 + 56)
= 109 + 109 + ... + 109
= 11(109)
= 1199
Answer:
No, because all the expected frequencies must be higher than 5.
Step-by-step explanation:
The chi-square test might be performed in those situations in which we need to know if a series of observations adjust or not to a theoretical function, such as the normal, Poisson, or binomial.
The chi-square test does not require the number of files to coincide with the number of columns in the table. It does not establish any restriction about the number of modalities per variable. However, the expected frequencies or counts should not be less than five.
In the exposed example, this unique rule is not accomplished, so the chi-square test can not be performed.
