Maybe 30, it’s hard to tell
Answer:
7
Step-by-step explanation:
42/6 = 7
Answer:
<h3>42</h3>
<u>Required probability:</u>
- P(≤4) = (18 + 14 + 20 + 16)/(18 + 14 + 20 + 16 + 15 + 17) = 68/100 = 0.68
<h3>43</h3>
<u>Required probability:</u>
- P(>3) = (20 + 16 + 15 + 17) / (18 + 14 + 20 + 16 + 15 + 17) = 68/100 = 0.68
<h3>44</h3>
<u>At least 2 students pass:</u>
- P(2 or 3) = (3/5)² + (3/5)³ = 9/25 + 27/125 = 72/125 = 0.576
<h3>45</h3>
<u>Number of x's:</u>
- x/108 = 4/27
- x = 108*4/27
- x = 16
You can subtract 78.2 from 287 to get the x value alone. Your new expression will look like this:
.5x=208.8
Next you divide by .5 (or multiply the reciprocal 1/.5 depending on how you were taught)
x=417.6
Hope that helps!!