Answer:
0.6604
Step-by-step explanation:
Given that a market research firm knows from historical data that telephone surveys have a 36% response rate.
Sample size of random sample = 280
We know for samples randomly drawn of large size sample proportion follows a normal distribution with mean= sample proportin and std error
=
Substitute p = 0.36 and q = 1-0.36= 0.64
p follows N with mean = 0.36 and std dev =
Using normal distribution values we can find\
<em>The</em><em> </em><em>value</em><em> </em><em>of</em><em> </em><em>p</em><em> </em><em>is</em><em> </em><em>1</em><em> </em><em>3</em><em>/</em><em>4</em>
<em>Look</em><em> </em><em>at</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>picture</em>
<em>Hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>you</em>
<em>Good</em><em> </em><em>luck</em><em> </em><em>on</em><em> </em><em>your</em><em> </em><em>assignment</em>
Answer:
1060
Step-by-step explanation:
Given:
No. of boys = 870
No. of girls = 800
Probability that a boy chosen studies Spanish =
Probability that a girl chosen studies Spanish =
the number of boys in the school who study Spanish :
the number of girls in the school who study Spanish :
Therefore, total number of students who study Spanish would be :
480+580=1060
