Answer: 1,045 passengers
Step-by-step explanation:
This question involves multiple steps. Let's first try to figure the number of children on the cruise.
The ratio of girls to the total number of children was 2:5. There are 198 boys.
This information tells me that for every 5 children, there's 2 girls and 3 boys.
Based off of this information, we can divide the total number of boys by 3 in order to find the number of children.
198÷3=66
Let's multiply 66 by 5 since that's the number of groupings based off the ratio.
66×5=330
Let's check the number of children. Since the ratio of girls to total children is 2:5 and we already confirmed there's 198 boys, there should be 132 girls. We can turn this ratio into a fraction where 2/5 of the children are girls. we can confirm this by multiply 330 by 2/5 (0.4) and getting 132.
There are 330 children on the cruise.
The ratio of the number of adults to the number of children was 13:6.
For every 6 children, there were 13 adults. Let's divide the number of children by 6 in order to find the number of groupings.
330÷6=55
Let's now multiply the groupings by 13 to find the number of adults.
55×13=715
So there should be 715 adults and 330 children on the cruise.
715+330=1,045
Answer:
The correct option is (A).
Step-by-step explanation:
The multiple linear regression equation is given by, 
, where <em>α</em> = constant and <em>β</em>
= slope coefficients of regression line.
To test if there is a important relationship amid <em>X</em> and <em>Y</em>, we use the <em>t</em>-statistic test.
The <em>t</em>-statistic for regression coefficient analysis is given by,
The regression equation for test scores dependent upon the two explanatory variables, the student-teacher ratio and the percent of English learners is:
A <em>t</em>-test for the significance of the regression coefficient of variable student-teacher ratio (STR) is conducted.
The test statistic is found to be, <em>t</em> = 2.56.
The regression coefficient of variable STR is, 1.10.
Compute the standard error of the regression coefficient as follows:
The standard error of the regression coefficient is 0.43.
Thus, the correct option is (A).
An account that earns a higher rate of interest when you make a large deposit is a money market account <span />
Answer:
c
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
10x+30+9x+4=x-5+3
19x+34=x-2
18x=-36
x=-2
