Answer:
a. 0.9049
b. 0.2297
c. 0.8473
Step-by-step explanation:
Given U = 46.7, SD = 1.75
and Z = (U - X)/sd
(a). We want to find P(X<=49)
P(X<=49) = P(Z<= 49-46.7/1.75)
= P(Z<= 1.31)
= 0.90490
~= 0.9049
(b) P(X>=48) = P(Z>=48-46.7/1.75)
=P(Z>=0.7429) = 1 - P(Z<=0.7429)
= 1 - 0.77035
= 0.22965
=0.2297
(c) The required probability is given by P(U±2.5).
P(46.7±2.5) = (44.2<= X <=49.2)
= P( 44.2<= Z <= 49.2)
= P(44.2 - 46.7/1.75 <= Z <= 49.2- 46.7/1.75)
= P( - 1.4286 <= Z <= 1.4285)
= P(1.4285) - P(-1.4285)
= P(1.43 ) - P(-1.43)
= 0.92364 - 0.07636
= 0.8473
Convert 40 feet to inches. 40 x 12 = 480 inches. So 500 inches is greater than 40 feet.
1/4 of $160 is $40. 3/10 of $120 is $36.
5/21 of 84 is $20.16. This leaves him with $63.84.
Answer:
so 14 can go into 28, 2 times and 19 can go into 38 2 times so the techaer can make 2 group with 14 girls and 19 boys in each group.
Step-by-step explanation:
<h2>How to find the cost per can</h2>
To find the cost per can, we can divide the total cost by the number of cans.
<h2>
Let's start with BiLo:</h2>
Total cost: $5.55
Number of cans: 12
The cost per can will be:
$0.4625 per can
How about Food Lion?
<h2>Food Lion</h2>
Total cost: $2.75
Number of cans: 6
The cost per can will be:
Around $0.4583 per can
<h2>Comparing</h2>
BiLo: $0.4625
Food Lion: around $0.4583
As we can see, Food Lion has a better cost per can, as it costs less to buy each can of Pepsi.
Answer: Food Lion has a better cost per can
