<span>The numbers of beads on 500 handcrafted bead necklaces follow a normal distribution whose mean is 24 beads and standard deviation is 4 beads. </span>so.... <span>About 24 necklaces have more than 28 beads. </span> <span>About 48 necklaces have more than 28 beads. </span> <span>About 80 necklaces have more than 28 beads. </span> About 96 necklaces have more than 28 beads<span>
</span> <span>About 80 necklaces have more than 28 beads. </span><span> Z score is 28-24/4=1 (1-.8413)=0.1587
