Answer:
0.1513
Step-by-step explanation:
mean= 15.4
SD=4.5
P(20<X<28)
P((20-15.4)/4.5 < Z < (28-15.4)/4.5)
P(1.022 < Z< 2.8 )
From Z distribution table,
P(Z<2.8)= 0.99744
P(Z<1.022)= 0.84614
P(1.022 < Z< 2.8 )= P(Z<2.8)- P(Z<1.022)
= 0.99744-0.84614
= 0.1513
Answer:
2/3
Step-by-step explanation:
Bag A: WWB
Bag B: B
For all values of x less than 7.5 the above inequality satisfies , i.e 
<u>Step-by-step explanation:</u>
Inequalities are the relationships between two expressions which are not equal to one another. The symbols used for inequalities are <, >, ≤, ≥ and ≠.
reads as '7 is greater than x' (or ' x is less than 7', reading from right to left).
reads as ' x is less than or equal to -4' (or '-4 is greater than or equal to x', reading from right to left).
reads as ‘ x is not equal to 5.
Here , we have
{ Dividing both sides by 2. }
∴ For all values of x less than 7.5 the above inequality satisfies.
Answer:
= -43
Step-by-step explanation:
Evaluating the expression;
(–1)8 + (–1)7 + –16 + –14 – (–1)2
We can use Bodmas
We remove the brackets first
(–1)8 + (–1)7 + –16 + –14 – (–1)2
We get
-8 + - 7 + -16 + -14 - -2
but; - × + = - and - × - = +
Thus;
-8 - 7 - 16 - 14 + 2
= -8 -7 - 16 - 12
<u>= -43 </u>
B. Quadrant 2 you can tell because point J is in the upper left quadrant.
