Answer:
(z-6)(z+3)
Step-by-step explanation:
Answer:
2/27
Step-by-step explanation:
Step one:
given data
Sample space
2 red sections,
3 blue sections, and
4 green sections
Sample size
2+3+4= 9
Required
The probability of Basha spinning a red on her first spin and a blue on her second spin
Step two:
On the first spin, spinning a red= 2/9
On the second spini, spinning a blue= 3/9= 1/3
Hence, The probability of Basha spinning a red on her first spin and a blue on her second spin= 2/9*1/3= 2/27
Answer:
c. 15
Step-by-step explanation:
20 - 15 + 5
35 - 15(2)
35 - 30 = 5
Answer:
0.9594
Step-by-step explanation:
Given that:
Sample size (n) = 64
p = 30% = 0.3 ; 1 - p = 0.7
Probability that sample proportion is greater than 0.2
Mean (m) = n*p = 64 * 0.3 = 19.2
Standard deviation (s) = √n*p*(1-p) = √(19.2*0.7)= 3.67
0.2 of 64 = 12.8
Z > [(x - m) / s]
Z > (12.8 - 19.2) / 3.67
Z > (-6.4 /3.67)
Z > - 1.7438
= 0.9594
