Answer:
True, the scores are not valid.
Step-by-step explanation:
The test supposed to be measuring intelligence. We can assume that the intelligence of most people relatively stable (will not change too much over a short amount of time), and can expect it should go upward with brain growth and education. But the test seems to give a huge decrease from the first and second results. Then the third result is a huge increase that even higher than the first test.
We don't know the true value of the subject, but seeing the huge gap for every repetition we can tell that the test result lacks precision.
Answer:
Below.
Step-by-step explanation:
Letter P is drawn - Impossible because there is no paper with P on it.
Letter drawn is a consonant - Likely because there are 6 out of 8 letters which are consonants.
Letter drawn is a vowel - Unlikely because there are only 2 vowels out of 8 letters.
Letter drawn is one of the first ten letters in the alphabet - Equally likely as there is 4 of these out of a total of 8.
Letter is L - Unlikely as there is only 1 piece of paper with L on it.
The paper draw has one letter on it - Certain as there is a letter on all the pieces of paper.
Answer:
exact form : x
= ±
√
118
−
6
Decimal form : x
= 4.86278049 or −
16.86278049
Step-by-step explanation:
Use the formula (
b
/2
)
^2 in order to create a new term. Solve for x by using this term to complete the square.
