Answer:
3/2
Step-by-step explanation:
formula: y2-y1/x2-x1
-1-(-4)/3-1=
-1+4/3-1
3/2
Answer:
C.
Step-by-step explanation:
hope this helps :-)
Complete question :
Standardized tests: In a particular year, the mean score on the ACT test was 19.3 and the standard deviation was 5.3. The mean score on the SAT mathematics test was 532 and the standard deviation was 128. The distributions of both scores were approximately bell-shaped. Round the answers to at least two decimal places. Part: 0/4 Part 1 of 4 (a) Find the z-score for an ACT score of 26. The Z-score for an ACT score of 26 is
Answer:
1.26
Step-by-step explanation:
Given that:
For ACT:
Mean score, m = 19.3
Standard deviation, s = 5.3
Zscore for ACT score of 26;
Using the Zscore formula :
(x - mean) / standard deviation
x = 26
Zscore :
(26 - 19.3) / 5.3
= 6.7 / 5.3
= 1.2641509
= 1.26
<em>Answer:</em>
<em>In general, the slope intercept form assumes the formula: y = mx + b.
</em>
<em>1. m is the slope (lesson on slope ) mnemonic : 'm' means 'move'
</em>
<em>2. b is the y -intercept ( lesson on the y-intercept ) mnemonic : 'b' means where the line begins.</em>
<em>Hope this helps :)</em>
<em />
Answer: 2.460
Step-by-step explanation:
The formula of Margin of Error for (n<30):-
Given : Sample size : n= 18
Level of confidence = 0.90
Significance level :
Using the t-distribution table ,
Critical value :
Standard deviation:
Then, we have
Hence, the margin of error (ME) of the confidence interval with a 90% confidence level = 2.460