Answer:
Y=1/5x since 0.20 in fraction form is 20/100 or 1/5.
Answer:
1) 24 is <span>40%</span> of 60
<span><span>2) (.4)100x</span>=24</span>
<span><span>3) 25</span>x=24</span>
<span><span>4) 25</span>x⋅5=24⋅5</span>
<span>5) 2x=120</span>
<span><span><span>6) 2x/</span>2</span>=<span>120/2</span></span>
<span>7) x=<span>60</span></span>
Answer:
Step-by-step explanation:
hello :
−3 − (−2)= -3+2 = -1
Answer:
d. (0.737, 0.823)
The 90% confidence interval is = (0.737, 0.823)
Step-by-step explanation:
Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.
The confidence interval of a statistical data can be written as.
p+/-z√(p(1-p)/n)
Given that;
Proportion p = 195/250 = 0.78
Number of samples n = 250
Confidence interval = 90%
z value(at 90% confidence) = 1.645
Substituting the values we have;
0.78 +/- 1.645√(0.78(1-0.78)/250)
0.78 +/- 1.645√(0.0006864)
0.78 +/- 1.645(0.026199236630)
0.78 +/- 0.043097744256
0.78 +/- 0.043
(0.737, 0.823)
The 90% confidence interval is = (0.737, 0.823)
