Tema
Q:
7. A pizza stand offers hand-tossed, pan, and
thin-crust pizza. Each pizza can either be a
white pizza with no sauce or a red pizza with
sauce.
Q:
There are two boys and a girl on a trivia team.
Two questions remain. One team member is
randomly picked to answer the first question
and a different member is picked to answer the
second question.
Q:
A bag contains three real diamonds and two fake
diamonds. You randomly pick a diamond.
Q:
When a button is pressed, a computer program
outputs a random odd number greater than 1
and less than 13 . You press the button once.
Q:
The mean daily production of a herd of cows is assumed to be normally distributed with a mean of 32
liters, and standard deviation of 5.6 liters.
a) What is the probability that daily production is less than 48 liters?
Answer \( =\square \) (Round your answer to 4 decimal places.)
b) What is the probability that daily production is more than 42.8 liters?
Warning: Do not use the \( Z \) Normal Tables...they may not be accurate enough since WAMAP may look for 4 decimal places.)
more accuracy than comes from the table.
Q:
A large fast-food restaurant is having a promotional game where game pieces can be found on various
products. Customers can win food or cash prizes. According to the company, the probability of winning a
prize (large or small) with any eligible purchase is 0.129 .
Consider your next 32 purchases that produce a game piece. Calculate the following:
This is a binomial distribution. Round your answers to at least 4 decimal places.
a) What is the probability that you win 4 prizes?
b) What is the probability that you win more than 5 prizes?
c) What is the probability that you win 2 prizes or fewer?
Q:
Sebuah kotak mempunyai 17 biji bola merah, \( x \) biji bola biru dan \( y \) biji bola kuning.
Kebarangkalian bahawa bola merah dipilih secara rawak ialah \( \frac{1}{5} \). Cari nilai \( x+y \).
A box has 17 red balls, \( x \) blue balls and y yellow balls. The probability of a red ball is picked randomly is \( \frac{1}{5} \)
Find the value of \( x+y \).
Jawapan / Answer:
Q:
13. Dalam sebuah kelompok terdapat 16
anak terdiri dari 10 anak gemar musik
pop. 8 anak gemar musik dangdut dan
beberapa diantaranya suka keduanya.
Bila seorang siswa dipanggil, maka
peluang yang terpanggil adalah siswa
yang gemar musik pop dan dangdut
adalah....
\( \begin{array}{ll}\text { A. } 1 / 6 & \text { C. } 1 / 4 \\ \text { B. } 1 / 5 & \text { D. } 1 / 3\end{array} \)
Q:
11. Dalam sebuah kotak terdapat 5 bola
merah dan 8 bola hijau. Diambil secara
acak 1 bola merah dan tidak
dikembalikan. Peluang terambilnya 1
bola merah ke-2 adalah.....
\( \begin{array}{ll}\text { A. } 1 / 3 & \text { C. } 1 / 2 \\ \text { B. } 5 / 12 & \text { D. } 5 / 8\end{array} \)
Q:
1. La vida útil, en días, para frascos de cierta medicina de prescripción es una variable aleatoria
continua \( X \) que tiene la siguiente función de densidad de probabilidad
\[ f(x)=\left\{\begin{array}{ll}2 e^{-x} \sqrt{e^{-2 x}+1}, & x \geq c \\ 0, & x<c\end{array}\right. \]
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